The correct answer is <span>B. Our three main objectives are removing lead from the water supply, replacing the broken pipes, and getting the water flowing again as fast as possible.
A parallel structure means that the same form of words is used throughout the sentence. As you can see here, gerunds are used throughout: removing, replacing, and getting. The other examples are mixing the forms a bit, and therefore do not show parallel constructions.
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"Never shame your ancestors" means that no matter what you do, the past generations are with you. In other words, think before you act. It's important to be cautious and wary that you don't bring shame to the people before you.
C makes the best sense. It's comma is correctly placed and the sentence is not over complicated.
What kind of quote are you looking for?