Answer :
<h2><em>The right answer would be</em>
C</h2>
Umm well have a good setting and reasoning for why you want chemistry between them. And for good chemistry give them a history and challenge there chemistry with different moods and obstacles. thats just my opinion i love writing.
I would say the answer is C because it says heat and the passage was talking bout fire, it just seems like the best answer, sorry if I'm wrong :)
