Only when humans use nonchemical approaches to pe...

Câu hỏi:  Only when humans use nonchemical approaches to pest control______ 

A Will creatures such as roaches and rodents be successfully eliminated .

B Creatures such as roaches and rodents will be successfully eliminated . 

C If creatures such as roaches and rodents will be successfully eliminated .

D That creatures such as roaches and rodents will be successfully eliminated.