Answer:
D. They allude to the speaker’s concern that death would deprive his fertile imagination, a field of “full-ripen'd grain,” to be harvested in books.
Explanation:
"When I Have Fears that I May Cease to Be" is a sonnet written by <em>John Keats</em>, an English Romantic poet. The sonnet talks about life and how transient it is. It centers on <u>his fear of people's mortality</u> and<u> how life can be very limited</u>, as it limits his ability to write.
He is concerned on how death would prevent him from pouring out his <em>thoughts, ideas and feelings</em> into his books by writing.
So, this explains the answer.
