Answer:
B. The writer is introducing an idea by comparing it to a situation most people would understand or experience.
Explanation: We can tell that the writer is using the first sentence to introduce an idea by comparing it to a situation that most people would understand because that sentence is followed by the statement that, “This is similar to what happens in a community.” The writer explicitly states that the situation outlined in the first sentence is “similar” to what happens in a community. The rest of the paragraph is the writer elaborating on that statement and drawing attention to the shared concept between the two situations of sacrifice for the will of the majority.