I opted for choice "C", I believe it is the answer.
Answer:
Marlo is the hero of "Heart of Darkness."
Explanation: I just assume this is right because he is on a journey looking for Kurtz?
The gym is closed on Sundays, it opens on Monday morning.
There is no need to add “early” since the word “morning” is already in the sentence.
The conductor urged "All musicians should continue to practice for the remainder of the week."
This one looks the best to me. The only thing is there should be a comma next to, "urged"
