Do you have a picture of the question, or do you have anymore information to answer this? such as what type of graph they’re talking about, and what data.
The most probable and most likely answer to this problem would be C. revealed much about their behavior.
Out of the four options presented in this problem, C. would only need a complete subject to make it a correct sentence. Options A. by closely watching and gathering data and B. to terrifying effect would probably need other more words and/or phrases to make them more complete. D. insect studies, on the other hand, can also be considered as a correct option IF insect become the subject.
Answer:
A dutch man called Miep Gies hides Anne Frank, her family and four other Jews: Fritz Pfeffer, Hermann van Pels, Auguste van Pels, Peter van Pels
I would say the author means that it would be impossible, or would require tech that today's tech cannot do.
science fiction, or fiction, usually means make believe or fake.
250,000 is 254,920 rounded to the nearest 10,000
