__________ is no possibility__________Bob will win the first prize in the match.

A．There;that

B．It;that

C．There;whether

D．It;whether

某有机物含有下列一种官能团，该有机物既能发生消去反应、氧化反应和酯化反应，又能跟某些活泼金属发生置换反应，该官能团最可能的是 

A．—Cl

B．—OH

C．—COOH

D．—CHO