Answer:
The most common definitions are listed first
Explanation:
Dictionaries are intended to be convenient, therefore they would put the most common definition first to avoid the reader to search through all the other ones.
I think undergraduates. I´m going to second guess myself and say alumni. Wait, I talked it over with myself and I think I wrote the right answer first. Lol, hope this helps.
Yeah but just make sure to give reasons why in the sentence after that
The answer is D: Someone's dog is barking :)