logos is using logic so it could be that, and ethos is using a character or tries to convince you of its credibility so that is another option. Decide if their trying to appeal to credibility or if the statistic is more important.
I believe the answer is B. Why I chose B? I chose B because connotation is an implied meaning that is associated with a word in addition to its literal meaning. This association can be cultural or emotional.
Bananas = connotation in B
Another connotation
In my eyes, she is like a dove floating on the thermal cloud.
Dove does mean a bird here but an angel