Answer:
It's gotta be passive
Step-by-step explanation:
Alright, so if you look up what concise is, it basically means that you are giving some information that has very few words to explain it with. But in this case, the one that has the more words is obviously the one that gives in more information on the whats, whens, whos, hows, and the wheres.
The last passive of "The computer was purchased by Tom" was a giveaway on what was more concise.
Some of these teachers are looking at who are the Snipers, not the Machine Gunners. (Don't include this)