Hi lovely,
The answer you're looking for would be B.
The rest of the answers have words that are unnecessary which would be wordiness.
The correct answer is D- A narrative tells a story, while expository writing contains only fact-based information.
Both are correct. Example sentences below.
In three hours, we will arrive at our house.
In three more hours, we will arrive at our house.
When using "more", it implies that there was time that was previously passed.