Answer:
C
Explanation:
This title is the most appropriate because it does not limit research to a narrow question, but rather asks a series of essential questions.
Much research will have to go into the three questions of how, when, and why doughnuts became popular, but ultimately all these questions will help reveal the beginnings of a popular food item in the modern United States.
A - completely consumed her
A. Wasn't.. This is because if you seperatevthe contractioninto two words it is was not, this would make the sentence be "Wally was not capable of lifting the heavy box."
If you were to do the same thing with weren't it would sound like "wally were not capable of lifting the heavy box." This does not make sense because "wally" is singular (so is "was not") and "were not" is pleural.
Hope this helps
The adverb is either because it helps describe the sentence more.