他的不合作态度使这个项目进展十分缓慢。()

他的不合作态度使这个项目进展十分缓慢。()

A.His incooperation makes the project progress very slowly.

B.The project is making slow progress due to his lack of cooperation.

C.The project makes less progress because of his uncooperation.

D.The slowdown of the project is caused by his uncooprativeness.

请帮忙给出正确答案和分析，谢谢！