What is the underlying theme of this passage?
then an old wolf, gaunt and battle-scarred, came forward. buck writhed his lips into the preliminary of a snarl, but sniffed noses with him, whereupon the old wolf sat down, pointed nose at the moon, and broke out the long wolf howl. the others sat down and howled. and now the call came to buck in unmistakable accents. he, too, sat down and howled. this over, he came out of his angle and the pack crowded around him, sniffing in half-friendly, half-savage manner. the leaders lifted the yelp of the pack and sprang away into the woods. the wolves swung in behind, yelping in chorus. and buck ran with them, side by side with the wild brother, yelping as he ran.
(from the call of the wild by jack london)

"the children's hour" by henry wadsworth longfellow between the dark and the daylight, when the night is beginning to lower, comes a pause in the day's occupations, that is known as the children's hour. i hear in the chamber above me the patter of little feet, the sound of a door that is opened, and voices soft and sweet. from my study i see in the lamplight, descending the broad hall stair, grave alice, and laughing allegra, and edith with golden hair. a whisper, and then a silence: yet i know by their merry eyes they are plotting and planning together to take me by surprise. a sudden rush from the stairway, a sudden raid from the hall! by three doors left unguarded they enter my castle wall! they climb up into my turret o'er the arms and back of my chair; if i try to escape, they surround me; they seem to be everywhere. they almost devour me with kisses, their arms about me entwine, till i think of the bishop of bingen in his mouse-tower on the rhine! do you think, o blue-eyed banditti, because you have scaled the wall, such an old mustache as i am is not a match for you all! i have you fast in my fortress, and will not let you depart, but put you down into the dungeon in the round-tower of my heart. and there will i keep you forever, yes, forever and a day, till the walls shall crumble to ruin, and moulder in dust away! which literary device does longfellow use most frequently in the poem? a. simile b. metaphor c. repetition d. personification