Final answer:
The person described is suffering from a mental disorder. The correct answer is C.
Step-by-step explanation:
The person described in the question is suffering from a mental disorder. Mental disorders are clinically significant behavioral or psychological syndromes that are associated with distress, disability, or an increased risk of suffering.
Mental disorders encompass a wide range of conditions that include but are not limited to, anxiety, depression, schizophrenia, bipolar disorder, and more. Each of these conditions can significantly impair a person's ability to function in daily life. The American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders (DSM) is a critical resource for professionals to diagnose and understand these disorders.