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:
B)
Explanation:
The passage with the sentences from your question are missing and I cannot find them on the internet but I have found the correct answer which is B). Unfortunately, I cannot give you any explanation of it, but I hope that this will help you with your research.
I assume that the missing passage is about the environment and how people are treating it but I cannot give you any further information until you share the missing passage.
Rome formed and alliance to get dat dub
Answer:
#3 is: electronic communication makes it difficult to convey and understand tone
Traditional Native Americanism, If not correct please forgive me