For the answer to the question above, I believe it is various forms of be.
The most common linking verbs are, am, is, are, was, were, being, and been, so the correct answer is the third choice among the given questions.
Answer:
What caused Schaffer to instruct his assistant to strike Box 342, accidentally sending firefighters to the wrong place was:
B. the dark, hazy night and the tall buildings
Explanation:
The passage establishes the cause-and-effect relationship very clearly. According to the author, Shaffer was trying to determine the exact location of the flames he could see in the distance. However, <u>"This wasn't easy because of the distance and tall buildings between him and the flames. In addition, the moonless sky was made even murkier by the swirling, smoky haze."</u> After offering that explanation, the author says Schaffer instructed his assistant to strike Box 342. What we have here is:
- Cause: the night was dark and hazy; there were also tall buildings making it difficult to determine the location;
- Effect: Schaffer mistook the location of the fire and instructed his assistant to strike Box 342.
