Which of the following adverbs in italic is NOT used to modify another adverb？A．I intervie

Which of the following adverbs in italic is NOT used to modify another adverb？

A．I interviewed rather too many people.

B．I don"t know him well enough to lend him money.

C．This apple isn"t so sweet as that one.

D．He translates this passage quite well.

请帮忙给出正确答案和分析，谢谢！