Definition: You are given a question on high school psychology. You are also given 4 answer options (associated with "A", "B", "C", "D"), out of which only one is correct. You need to answer the question by selecting the correct option. You should only answer with the choice letter, not the whole answer.
Input: Which of the following disorders is most likely related to the amount of light to which a susceptible person is exposed?
(A)seasonal affective disorder (B)claustrophobia (C)Alzheimer's disease (D)catatonic schizophrenia

A