Final answer:
The MMPI is an objective psychological test that uses true/false questions to provide a clinical profile, distinct from projective tests like the Rorschach and TAT.
Step-by-step explanation:
The Minnesota Multiphasic Personality Inventory (MMPI) is an objective psychological test. The MMPI employs a series of true/false questions and is designed to provide a clinical profile of an individual. In contrast, projective tests, such as the Rorschach Inkblot Test and the Thematic Apperception Test (TAT), use ambiguous stimuli to assess an individual's unconscious fears, desires, and challenges. The MMPI is a self-report inventory and it is not a projective test. Therefore, the correct answer to which one of the following is an objective psychological test is D. MMPI.