If some one is happy but music reminds him of something sad he would be mad.
Answer:
You can only vote the answer as brainliest if its your questions. The option of brainliest doesn't appear until your questions has two answers.
After you got two answer at your questions you may chooses the more helpful one as brainliest by tapping in the option 'MARK BRAINLIEST' above the answer.
I think that The answer is b.
Answer:
He speaks in a respectful tone
He states the agenda to focus the discussion
He calls on participants to the discussion on task