Which is an example of a primary source? A. A letter written by a criminal while in jail
B. A television report three months after an event happened
C. A book written about an event
D. An interview with an expert who was not involved

The correct answer is A.

Explanation:

A letter written by a criminal while in jail is something that is happening and being directly written by that source, during the event taking place. Therefore A is the correct answer.

hope this helps !

hey! what was the rest of the question?

yes you could be a life guard if that the question.