Which sentence uses the word benign correctly?

a. don't be so benign as to forget your homework again.

b. my mother's cookies were fresh out of the oven and totally benign.

c. i was benign as a child, but have learned to speak up for myself as an adult.

d. the stingray had had its stinger removed and was completely benign.

Those are books that need to be returned to the library what is the antecedent of the pronoun those

Explain the subject-verb agreement rule that applies to a singular collective subject functioning as a single unit. demonstrate your understanding of the rule by composing a sentence that uses the singular collective subject "crew”

Imagination! who can sing thy force? or who describe the swiftness of thy course? soaring through air to find the bright abode, th' empyreal palace of the thund'ring mode, we on thy pinions can surpass the wind, and leave the rolling universe behind: from star to star the mental optics rove, measure the skies, and range the realms above. there in one view we grasp the mighty whole, or with new worlds amaze th' unbounded soul. what does the speaker compare imagination to in the poem? a. a soaring bird b. the sky c. a cloud d. a sailing ship