The correct answer is B.
The first two sentences are establishing characteristic shared by both petroleum and coal. The word "however" is used to contrast the similarities already presented with the differences that will be stated in the following sentences.
1. They help the setting become more realistic.
2. They could even help the main character on stage feel less anxious, since they're not the only one up there.
Answer:
The correct answer for the question that is being presented above is this one: "B. At ten minutes before H-hour the general came in, shepherding the professor before him. The professor was comfortably attired in sneakers, gray flannels, a blue sweater, and a white shirt open at the neck."
Explanation:
An example of a text feature is A)headings
