Answer: Great Britain and China
Explanation: Britain was running out of money, due to their love of tea, mainly from China. There was an unfavorable balance of trade, and Britain wanted it to be in their favor. So, they got China hooked on opium, and the Opium Wars resulted.
There's many answers for this question, as long as it's a similar word to disbelief. President Roosevelt's reaction was pretty much thinking, "This is unbelievable." So therefore, you can put disbelief or distrust.
The Romans and Jews helped spread Christianity
The answer is (B) hydroelectricity