The standards of physical and medical fitness established by the

The standards of physical and medical fitness established by the Party shall not ensure that seafarers ______.

A.have the physical capability to fulfil all the requirements of the basic training

B.demonstrate adequate hearing and speech to communicate effectively

C.are suffering from any medical condition likely to be aggravated by service at sea

D.have no medical condition that will prevent the effective and safe conduct of their routine and emergency duties on board

正确答案是C