You are given a short paragraph, a question and two choices to answer from. Choose the correct answer based on the paragraph and write the answer(not the key).

[EX Q]: Paragraph: Countries with more industry produce more hazardous wastes than those with little industry.
 Question: James loved to travel the world. In his travels, he noticed that America contained a lot of industry while China contained not much industry at all. Which country produced less hazardous wastes? 
 Choices: A)America 
B)China
[EX A]: China

[EX Q]: Paragraph: By using multiple stages, empty fuel containers could drop away. This reduced the mass of the rocket so that it could fly higher.
 Question: Ray was traveling in rocket leaving orbit. He ejects the empty fuel containers so the ship can fly 
 Choices: A)higher 
B)lower
[EX A]: higher

[EX Q]: Paragraph: As more resistors are added in parallel, the total current strength increases.
 Question: Mike adds more and more resistors into his parallel circuit, which causes the total current strength to 
 Choices: A)increase 
B)decrease
[EX A]:
increase