Answer:
A?
Explanation:
I have no idea if I'm right but I tried.
:)
The answer is D because it states an hypothetical situation, as you explained above.
Answer:
A job application would most likely use formal language due to the professional setting.
He climbed out of the trench and made his way carefully back to the clumped bushes where the kitchen was.
An abstract noun is a noun that you can't feel, hear, taste, smell, and see. Like hope. A concrete noun is a noun that you CAN feel, hear, taste, smell, and see.
So the abstract noun in this sentence is not choir, but harmony.
hope it helps!