Answer:
Explanation: To provide more personality into the characters that are speaking.
D is correct
A is wrong because is should be are
B is wrong because does should be do
C is wrong because has should be have
The claim is usually defined as your belief, like what you think it is. Example: I believe that all spiders are bad, but on the other hand... something like this i think. I hope this helps you.
The answer is D because it states an hypothetical situation, as you explained above.