Can someone me out with this question i will appreciate it a lot me put

Is "they" an unstressed or stressed syllable?

In a group discussion, which statement most clearly uses evidence to support a conclusion? a) the author makes some good points, but i feel that he’s ultimately biased. b) the author proves that he’s biased when he uses terms like “silly” and “stupid”. c) the author obviously hates the way fast food tastes, which is why he’s negative. d) the author first criticizes fast food, and then goes in to criticize junk food.

Which two pieces of evidence support the idea that coal is underutilized? this was on study island about coal