They were exposed to biased information, so they d...

Câu hỏi: They were exposed to biased information, so they didn't know the true story.

A If they got unbiased information, they could know the true story.

B If they had unbiased the information, they could have known the true story.

C If they had been exposed to unbiased information, they would have known the true story.

D If they have exposed to the unbiased information, they could have seen the true story.