Instructions: You are given a paragraph, a question and some answer options (associated with "A", "B", "C", "D", etc.) You need to list all the correct answer options with their associated letters (e.g. "A" can be a valid answer). Note that sometimes, more than one option can answer the question correctly and completely. In those cases, please generate all such options separated by a comma (e.g. "A, B" is a valid answer). Do not generate anything else apart from one or more of the following characters: 'A', 'B, 'C', 'D', etc.
Input: Paragraph- Sent 1: I had drunk too much, I confess, though we all had.
Sent 2: Somehow, Tasha and I began to argue the worth of Solevgrad jazz, as inconsequential a topic as I can imagine.
Sent 3: She had studied it in school, so she thought herself as an expert.
Sent 4: I once had a neighbor who played it constantly, loudly, and badly, so I thought I knew it better.
Sent 5: Malaquez tried to mediate, but I saw him as siding with Tasha.
Sent 6: So, I think, did she.
Sent 7: The subject shifted from music to Tasha's obsession with fame, undoubtedly by a leap that I made.
Sent 8: She had no choice but to follow.
Sent 9: (I do not remember any of this well, just now, nor do I care to.
Sent 10: Those who are truly curious may look at the last act of "Captured Moments.") I remember suggesting, with characteristic tact, that she add Emil to her small list of major accomplishments.
Sent 11: Malaquez glanced away, embarrassed.
Sent 12: Tasha looked at me as if to say, "I will."Sent 13: She said, "I feel sorry for you, Nardo.
Sent 14: I'll see Emil home."Sent 15: "Yes," I said, "Do that," and did not care what she did, or why.
Sent 16: Emil asked, "You're all right?"Sent 17: I muttered something he must have interpreted as assent.
Sent 18: They both walked up to Emil's home while I watched the scarlet moonlight ripple on distant waves.
Sent 19: Disgusted with Tasha but more disgusted with myself, I finally realized she would not return that night and went into The Sleeping Flamingo to drink myself to sleep.
Sent 20: She had not come home when I woke in mid-morning. 
Question: What discussion topic does Nardo feel that Tasha was obligated to follow along with? (A) His neighbor who played jazz constantly and loudly (B) Solevgrad Jazz (C) Her idea that she was an expert in Solegrad jazz (D) Her obsession with fame.
Output:
D.