This question is missing the excerpt and the summary. I've found them online. They are the following:
Half of this biocontainment operation was going to be news containment. C. J. Peters's comments to The Washington Post were designed to create an impression that the situation was under control, safe, and not all that interesting. C. J. was understating the gravity of the situation. But he could be very smooth when he wanted, and he used his friendliest voice with the reporters, assuring them over the telephone that there really was no problem, just kind of a routine technical situation. Somehow the reporters concluded that the sick monkeys had been "destroyed as a precaution" when in fact the nightmare, and the reason for troops, was that the animals hadn't been destroyed.
Summary of central idea: It was very important to keep the truth about this operation from the news.
Answer:
The option that best describes this summary of the central idea is:
B. It is a strong summary because it is objective and accurately expresses the paragraph’s central idea.
Step-by-step explanation:
"The Hot Zone" is non-fiction thriller by author Richard Preston. It concerns the origins of Ebola.
Summaries are supposed to convey the main idea of a passage, a paragraph, or a book, for instance, in fewer words. They are supposed to explain the gist of it all, and should not convey any personal ideas or opinions of the one writing them. That makes for a strong summary.
That is precisely what we have here: "It was very important to keep the truth about this operation from the news." This is what the passage is about, and the author of this summary was capable of reducing several lines into just one sentence. He/She was also able to not state his/her own opinions. Therefore, we have a strong summary.