Student X knows for certain that Professor Y made a mistake marking grading 5 questions on the final exam and makes an appointment to discuss the questions with the professor. Instead of asserting that the professor is plain wrong, the student decides to maintain a humble posture and question whether there might be alternative answers to the 5 questions. Which evolutionary hypothesis predicts this behavior as an adaptive solution to avoid threat? a. the ego-avoidance hypothesis b. the worthy ally hypothesis c. the self-doubt hypothesis d. the deceiving down hypothesis