Answer :
The correct answer is letter c, depth charging. It is because depth charging is a way of making a statement more detailed with the use of having a basis such as facts or experiences that could be made use of in supporting the statement.
When you provide elaboration by making a statement and supporting it with multiple facts, statistics, and personal experiences, you are _____.
a. stating alternative solutions to a problem
b. paragraph blocking
c. depth charging
d. defining the problem