An individual with an exceptional memory is identified. she is capable of recalling major events, the weather, and what she did on any given date. what research method is being used if a psychologist conducts an in-depth investigation of this individual including questionnaires, brain scans, and memory tests? a. naturalistic observation. b. survey. c. interview. d. case study. e. correlational method.

Case study.

Explanation:

Case study may be defined as one of the research method that includes the depth and detailed study of the particular subject or case. The formal research methods are used in the case study.

The individual has memory that can memorize of the date events. The psychologist can do the case study of that individual by including the brain scans and memory tests. The case study is useful to find the research method in case of this individual.

Thus, the correct answer is option (d).

pathogens is the answer