A is the answer.. because it is not persuading you to stop and reduce it is giving you a fact on what is happening.
it would be 1 because you would need to gather info
it would be 2 because you would need to evaluate what the person is saying
it would be 4 because if you question their evidence then you will get more info and be able to look it up or ask more people to know if what they are saying is right
B.Wearing nothing but a diaper, the mother feared that the baby would catch cold.
Answer:
The answer is: An informal idiom