I don’t have the text but i think the answer is B.
Talk about where it originated from and how (if it did) helped older civilizations. I really don’t know anything about pomegranate seeds but think like you’re writing this about a person and start with the birth of the pomegranate seed.
I think it is because the answer choice "A" does not provide an explanation for why everything tasted sweet, leaving the reader wondering. D, however, gives an explanation.