Which is a role of the recorder in a group discussion? prepare a report of the discussion contribute ideas to the group keep track of time mediate disputes between participants

Even the insistent cough of the woman next to him wasn't enough to draw his eyes away from the tiny type of the ancient book its pages were brittle and felt like they could crumble at the slightest disturbance he noticed the musty odor if each page as he carefully it over.

How does this passage contribute to the overall meaning of the story

Which would be the most credible source for researching the effects of smoking? letter from your grandfather web page about someone’s lung cancer report prepared by a tobacco company research article in a scientific journal