Answer:
C. Grammar and punctuation
It means sadness that lasts for a long period of time, often without any obvious reason
8 is bandwagon i’m almost positive
<span>C. An eleventh-grade or junior-year teacher
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It'll be the teacher that'll know you more up-to-date than the other ones, which you had when you were younger.
Based on the given excerpt, President Kennedy stressed his point by using anaphora to emphasize the lack of equality. Anaphora is a writing technique which refers to the intentional repetition of the first part of the sentence, in this case, the words that were repeated are: "It ought to be possible..."