The quote from the above excerpt which best illustrates Della's optimism is this: 'MY HAIR GROWS SO FAST, JIM. To be optimist is to be hopeful and confident about tomorrow. In the passage given above, Della's husband has just bought for her a set of expensive hair combs which she had seriously craved for, but now she has cut her hair to buy a watch chain for her husband, so the combs are useless to her. But she is optimistic that her hair will grow back very soon and she will be able to use the combs.
I believe it would be c :)
Answer is b because crept describes silently
1. Authority
Note the mention of "Nobel prize-winning scientist", which is generally the most prestigious scientists out there. What they say usually have authority and is believed by the ordinary people.
2. Emotion
First of all, how does the author know that the group is made up of "bigots". This is playing on the person's emotions, and trying to make them angry at their mistake, as well as give them a different group that they should look into.
3. Appeal to Logic
Note the usage of "make sense", as well as the building up of argument from the logical conclusion that "Diversity makes sense.. (via these reasons)".
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