Final answer:
Option (a), Herbie is taking the Thematic Apperception Test (TAT), a projective test where stories created from ambiguous pictures reveal aspects of a person's unconscious mind.
Step-by-step explanation:
Herbie is taking the Thematic Apperception Test (TAT), which is a projective test used to uncover a person's unconscious desires, fears, and struggles. When engaging with the TAT, individuals are presented with a series of ambiguous pictures and are asked to create a story about the images.
These stories are thought to reflect their social world and can reveal their hopes, fears, interests, and goals. Despite its modest to low validity and reliability, the TAT remains one of the most widely used projective tests in both clinical and counseling settings.