Explanation
Reading the question: the stem of this question is
unusual, since it asks how "the author develops the argument." It's worth a
glance at the answer choices to determine their format. The answer choices are
somewhat generalized descriptions of how the author has formed his argument. We
can create a filter by starting with the opinion in the prompt.
Creating a filter: The conclusion of the argument doesn't
really appear until the second sentence, with the opinion, "doesn't mean we are
helpless against them." The "development" of the argument is simply the final
sentence. This is a comparison with germ theory. We'd call it either a
comparison or an example and will look for "comparison or example" in the
answer choices.
Applying the filter: Looking at the first couple words of
each answer choice, we're left with (C). Indeed, an analogy is a comparison.
The "known" phenomenon is germ theory and the "unknown" phenomenon is nanotech.
We confirm that the author is not doing the other things. The correct answer is
(C).
If you believe you have found an error in this question or explanation, please contact us and include the question title or URL in your message.