A Compound sentence it has 2 independent clauses that has related ideas that can be joined by a coordinating conjuction.
It is definitely not B nor D because those two have negative meanings. It can't be C because excessive means "beyond the usual", which has a slightly negative meaning.
The answer should be A, conversational.
Answer:
b is the answer sorry 4 the time tho
The best choice is D since the stock is decreasing