Answer:
B. Identifying and studying endophenotypes
Explanation:
Endophenotype: The term "endophenotype" is described as one of the different genetic epidemiologies that is being utilized to distinguish different behavioral symptoms into a stable "phenotypes" possessing a clear and meaningful "genetic connection". The concept of endophenotype was proposed by Kenneth R. Lewis and Bernard John in 1966 paper.
The concept of endophenotype has been widely used in the study of schizophrenia as it describes both the brain dysfunction and underlying cause of an individual's behavior.
In the question above, the correct answer is B.
