Principle: Only if a professor believes a student knowingly presented someone ... ...

Principle: Only if a professor believes a student knowingly presented someone else’s ideas without attribution should the professor make an official determination that the student has committed plagiarism. Application: It is not the case that Professor Serfin should make an official determination that Walters committed plagiarism in the term paper about Willa Cather that Walters wrote for Serfin’s class. Which one of the following, if true, justifies the above application of the principle?
(A) Professor Serfin does not have completely compelling evidence to conclude that Walters presented someone else’s ideas as if they were his own in the term paper about Willa Cather.
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Oct 2012 LSAT (PT67): Logical Reasoning A