Their
I think that's what you're asking for?
Answer:
From this line, we can infer that kenniston is very responsible; organized. I'm not sure of the entire context of the story, but from this sentence, we can see that kenniston is most likely a natural leader, declining a suggestion (whatever it is) that would prevent him from carrying out his duties/responsibilities.
Answer:
The answer is competitive
Explanation:
I can tell by the nature of this text that it is nothing more than two brothers competing to be the best.