No hablar espanol amigo sorry
Answer:
D. It is the person or thing to or for whom the verb's action is done.
Explanation:
After age 20 you lose about a gram of brain mass per year.
"or press an ear against its hive,"
I'm assuming in this poem Billy Collins is comparing the act of reading a poem to the act of listening for the sound of honeybees but since it isn't mentioned it would be an "implied metaphor" which is comparing two unlike things without mentioning one of them. Hope this helps.