Answer:
Opinion-based - Fact-based.
Explanation:
As the exercise suggests, Ben's statement is opinion-based whereas Ethan's is fact-based. An opinion based statement is that which is not supported by factual evidence, just by an opinion, experience or just an imaginary view of something. A fact-based statement is the opposite: it is supported by a fact, a statistic, by something more "tangible" than an opinion. Just like in the exercise: one comment is just an opinion, whereas the other is a fact, supported by data about the subject.