HM Was a Man Who Underwent a Surgery That Removed

Multiple Choice

H.M. was a man who underwent a surgery that removed part of his medial temporal lobe. After the surgery, he was unable to form new long-term memories. Researchers studied H.M extensively over the next 50 years. These studies illustrate which purpose of case study research?

A) investigating rarely occurring phenomena
B) discovery of overlooked behaviors
C) understanding people's everyday experiences
D) all of the above