How does the passage develop the central idea "Elizabethans believed that health depended on the balance of the four humors"? It explains that Elizabethans could control the balance of their humors. It explains that Elizabethans blamed what they ingested for the imbalance of humors. It explains that Elizabethans believed that age was responsible for imbalanced humors. It explains that Elizabethans believed that divine intervention caused imbalanced humors.

the anwser is went creeping down the river again, across the wide lonely marshes to the sea.

i longed to go with them out into the world to seek my fortune in foreign lands—africa, india, china and peru!

and, dreaming of the lands i had never seen, i'd sit on there, watching till they were out of sight.

the answer to "what does the narrator realize by the end of the story" is b.

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 correct answer is d. sinking. - apex.