Whichoneofthefollowingwordsmeans"富有成效的"?

富有成效的会谈

成果丰硕的,富有成效的

请选出词义为"富有成效的"的单词

A、

 productive   

Propose 

stick to 

venture   

It’s your efforts that have made your stay so ________(富有成效的)

A、successful
B、fruitful
C、effective