No. The bandwagon approach is when the advertisers are telling you that everyone else is doing it/liking it, so you should too. Examples: The world's favorite cookie, everyone loves our product, etc.
Answer:
Hawk Hill should remain open because it is the only park we have with a lake where people can swim and fish.
Explanation:
Based on the reason the student gave for why he wants to save a city park which was that the Hawk Hill was his favorite park and was free to visit, the best detail to add to support to saving the park would be to argue that it should remain open because it is the only park that has a lake where the people can swim and fish.
Answer:
Irrelevant material/redundancies are unnecessary words that add nothing new to your sentence and make it wordy.
Explanation:
I'm assuming you mean redundancies by "irrelevant material." For example, The puppy dog sprinted really fast can be edited to the puppy sprinted. It isn't necessary to add "dog" when you have the word puppy. You don't need to say "really fast" when the word sprinted already means to run fast.
My answer is A, I; direct object