Which group discussion technique is best illustrated in the following statement?

i think credit cards are harmful for college students because, according to the article, students who have credit cards graduate college with more debt than those who don't.
a. challenging a logical fallacy
b. using multiple sources of information to draw conclusions
c. synthesizing various ideas
d. use of evidence to support opinions

Tia and lin had been best friends since kindergarten. both avid soccer players, the girls decided to try out for the high school team together. unfortunately, there was just one open spot, so only one of the girls would be chosen. they both worked hard, and on tryout day, they did their best. when the team roster came out, lin was excited to see that she had made the team but sad that tia had not. tia was happy for her friend and vowed to work harder so she would make the team the next year. which sentence is the exposition of the passage

Read the excerpt from the common sense of bicycling: bicycling for ladies. the bicycle is capable of such high speed that there is a strong temptation to ride so fast as to cause over exertion or excessive perspiration. on the other hand some people ride too slow, causing a zigzag and uncertain movement. while exercising reasonable caution, be a fearless rider. when you come to a steep hill, if the road is clear, let it go as fast as it will. if you rid yourself of that ghost of fear, coasting is one of the greatest delights of cycling. which is the best paraphrase of the text?

To choose a good persuasive essay topic, begin with a big idea, narrow it down, and a. then narrow it down more; it is impossible to have a topic that is too narrow. b. do some research to see what you should write about c. specify-ask a question you want answered in your argument