But his mother had discouraged him. she had affected to look with some contempt upon the quality of his war ardor and patriotism. she could calmly seat herself and with no apparent difficulty give him many hundreds of reasons why he was of vastly more importance on the farm than on the field of battle. she had had certain ways of expression that told him that her statements on the subject came from a deep conviction. moreover, on her side, was his belief that her ethical motive in the argument was impregnable.
at last, however, he had made firm rebellion against the yellow light thrown upon the color of his ambitions. the newspapers, the gossip of the village, his own picturings, had aroused him to an uncheckable degree. they were in truth fighting finely down there. almost every day the newspaper printed accounts of a decisive victory.
1. which of the following states a theme of the passage?

a. farm work is not very important during a time of war.

b. if you speak with conviction people will think you are right.

c. a passion for war should be fueled by more than just imagination.

d. hundreds of reasons are better than one when you feel strongly about something.
part b

2.which sentence or phrase from the passage supports your answer?

a.“she had had certain ways of expression.”

b.“her statements on the subject came from a deep conviction.”

d“.…her ethical motive in the argument was impregnable.”

d.“…his own picturings had aroused him to an uncheckable degree.”

i believe it is the first choice (1.)

because the major theme is(“both the wild and civilization have rules.”)

and also as u said,( based on what buck learns within the call of the wild, "both the wild and civilization have rules".this is true of humans within society as well.

the metamorphosis is based on an evident father-son problem. this story shows, as a result of the unthinkable transformation of the son in an insect, the deformation and destruction of the individual caused by the authoritarian and hierarchical structures of the family. the narrative begins with the transformation into an insect of enormous proportions of the traveling salesman gregor samsa, a lonely, introverted and submissive, who keeps his family with his work. when he worked, he was appreciated by everyone, but, now that he can not work, he is despised, especially by his father, but this is going to be joined, painfully for the protagonist, first his mother and, finally, his own sister, grete, with whom he had held a special relationship of complicity and affection for many years.

condemned by a deep sense of responsibility, gregor fears the reaction that his frightful aspect will incite in his family. he feels guilty for not being able to continue being useful to the beings he maintained. his own family, however, is ashamed and runs away from him, and even tyrannizes and resists him. the father, of a severe and despotic character, humiliates him and treats him with great cruelty. all his attempts to escape from the confinement to which he is subjected in his own room fail before the hostile rejection of the beings that surround him. prisoner in his lair and unable to continue playing the only function of making money he had, finally chooses, with the consent of his parents and sister, to die of starvation. with this, he is freed from a servile and unhappy existence. the family appreciates gregor while he fulfills the interests. but when he is unable to continue earning money, it becomes a problem, a shame, and family relationships begin to become tense, until coexistence becomes impossible.