Instructions: In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
Input: [header] How to know if someone is depressed [title] Watch for a loss of pleasure. [step] Anhedonia, or a loss of pleasure in daily activities, is a very common symptom of depression. Watch for signs someone no longer experiences in pleasure in activities they once enjoyed. <sep> (A) Be sure that their behavior has remained exciting. You may notice that the person is less attentive to pleasurable activities such as cooking and sporting activities, or that the person is more distracted by work or other obligations. (B) [substeps] You can notice this in subtle ways. A formally social person may, for example, turn down invitations to go out. (C) Anhedonia happens when a person loses pleasure in more enjoyable pursuits. [substeps] Drama turns lovers into paperboys, or husbands become genial strangers. (D) A lack of pleasure in pleasurable activities is a symptom of depression. [substeps] Intense pleasure in activities has been linked to mood swings.
Output:
B