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.
Answer would be: “When forty winters shall besiege thy brow. And dig deep trenches in thy beauty’s field.”
The verb is in past tense.
The answer is a it has nothing to do with violence
Hey mate!
You stuck?
I remember this story! :)
The answer is B. Asking the white children in his neighborhood to help him learn to read. In chapter VII, the quote, "Douglass's plan to learn to read centered on making friends with the poor white children of Baltimore and learning from them a little at a time," gives evidence of this fact.
Hope this helps! :)