How will the right answer fit in terms of support and conclusion?

Only the right answer will accurately describe what kind of support, conclusion, or background the statement is.

Highlight the main conclusion in the passage, if there is one:

a successful legal system prohibits only those few behaviors that citizens find absolutely intolerable.

Scholar: [SUPPORT]. [SUPPORT]. But [SUPPORT]. Therefore, [CONCLUSION].

Map the wording of the answers to the wording of the passage:

(A) It is offered in support of the implicit conclusion…

Nope, it’s support for the stated conclusion. There is no “implicit conclusion”, which would be something the passages gives support for but isn’t stated anywhere.

(B) It is the conclusion…

Nope, it’s support for the conclusion in the the “Therefore” statement.

(C) It is a premise of the argument.

Indeed it is. Once you’re comfortable tagging the parts of arguments and highlighting conclusions, these “role” prompts get kinda easy.

(D) It is an intermediate conclusion.

Nope. Since there’s no support for what “the purpose of a law” is, you can’t call it a conclusion of any kind.

(E) …the argument as a whole is designed to discredit.

The author never disagrees or contradicts with anything, so “discredit” has no business in an accurate description of the passage.

(C) is the correct answer.