D. parallel structure just means that all of your verbs in the comma series line up in regards to tenses, here. in choice D, it's "BE friendly," "INTRODUCE yourself," and "SMILE." these are all present tense verbs.
the rest of the choices don't match--"exercise" and "stretching" are two different verb forms in choice A, "to go to the library" is the odd one out in choice B, ane "to build" doesn't match with the "-ing" verbs in choice C.
This statement is not logical, because there can still be other farmers, who are not so generous. It's Illogical, although I would rather call it induction:generalisation from a small sample to a bigger sample.
Answer:
B
Explanation:
One of the reasons why this is "b" is because of the quote I pulled from the excerpt," And a further reason for caution, in this respect, might be drawn from the reflection that we are not always sure that those who advocate the truth are influenced by purer principles than their antagonists. " this quote not only tells the reader that the excerpt is on being cautionary of the state of politics and that people who fight for the truth may not be 100% true
