<span>It expresses more complete ideas.</span>
Answer:
(was the room haunted)
is the passive form of was it a haunted room.
The answer ia b, the worry flooded through her body. Not d, which is wrong.
<span>B. It quotes a scientist who seems to know a lot about the topic.
A and C are completely wrong. D is a maybe choice, but is wrong because anyone can use real people and places to create a work of fiction. Having a direct quote from a seemingly credible source would lead people to believe the text as fact.</span>