Here's a question: What does a person use to fight off disease?  Here are possible answers to this question: - immune system - name - one head - grip - fingernails  I believe the correct choice is "immune system", here's why:
----
Answer: a person is a human


Here's a question: He had to try to make the call in the middle of the night, it was hard to communicate using only a what?  Here are possible answers to this question: - communicating - response - yelling - hanging up - whisper  I believe the correct choice is "whisper", here's why:
----
Answer: whisper is allways using morning time


Here's a question: What would use an account book?  Here are possible answers to this question: - desk drawer - purse - bank - keep accounts - keep track of emails  I believe the correct choice is "bank", here's why:
----
Answer:
bank is financial institution