It is important to avoid harmful exposure to the sun’s direct rays.
which group of words is the complete infinitive phrase in the sentence?

to avoid harmful exposure to the sun’s direct rays
it is important
it is important to avoid
to the sun’s direct rays

What does the simile add to the passage

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

Me determine which are quote or paraphrase.