An 18-year-old patient comes to the clinic with his mother, who states that he used to be very active in sports and socializing with friends. Now, his mother claims that he has no interest in socializing with friends, he speaks very little, and he has no desire to leave the house. What type of symptoms is this patient experiencing?
A. Positive symptoms
B. Negative symptoms
C. Dystonic symptoms
D. Cognitive symptoms.
E. Delusional symptoms