The correct answer is c) the Rorschach.
Projective tests are psychological assessments that involve open-ended responses to ambiguous stimuli. The Rorschach Inkblot Test is a classic projective test where individuals interpret inkblots, revealing their thoughts, feelings, and personality traits. In contrast, the other options listed (16PF, NEO PI-3, Minnesota Multiphasic Personality Inventory) are structured personality assessments that use standardized questions and rating scales to measure personality traits and disorders, making them non-projective tests.