From the passage, it can be inferred that to solve...

Câu hỏi: From the passage, it can be inferred that to solve our energy problems ________ .

A a combination of conservation and invention will be needed

B we will have to stop using many of our modern conveniences

C scientists will have to find ways to increase our supplies of coal, oil, and gas

D scientists will have to find one major source of nonpolluting energy