___ enough patience,successful breeding of this rare species can be achieved.A,To give B,Given C Being given D,Giving为什么选B啊?

___ enough patience,successful breeding of this rare species can be achieved.A,To give B,Given C Being given D,Giving为什么选B啊?
___ enough patience,successful breeding of this rare species can be achieved.
A,To give B,Given C Being given D,Giving
为什么选B啊?

___ enough patience,successful breeding of this rare species can be achieved.A,To give B,Given C Being given D,Giving为什么选B啊?
因为句子的主语是successful breeding of this rare species ,跟give的关系是被动关系,而且Given
enough patience（被给予足够的耐心的话）是在主句breeding 前做状语的短语,这里的given既表示被动,又表示动作在主句的谓语动词achieve前发生,所以须用given这个过去分词短语做条件状语.
.如果给予足够的耐心,这种稀有物种的孵化就很有可能成功.

过去分词短语做状语，表被动含义啊，你这句子主语是successful breeding of this rare species ，主语中心词是动名词breeding，主语【被】给予足够的耐心

B表示条件或者假设啊