How does the author reveal Caleb's character in paragraphs 1 and 2

Which of the following is an example of a periodical?

Which pair of uses of figurative language from “the caged bird” support the extended metaphor of freedom versus oppression? back of the wind; floats downstream his wings are clipped; his feet are tied the caged bird sings; the free bird thinks dawn bright lawn; grave of dreams

This summer, stretched on well into fall, yielded a rich crop a. which b. itself c. whose d. those