20-10SD 阅读 Q44

第1段的credit和以下哪个词意思最相近。
文章首先提问为什么orchid，daisy等植物会占领世界，说两个生物学家认为是叶子的功劳。credit在这里的意思是to attribute to some person 归因于，对应D。
A give reimbursement to: to pay back money to someone who has spent it for you or lost it because of you 补偿
B depend on: to be determined or decided by (something)
C believe in: to have faith or confidence in the existence of (something)