Usually the reason is D. It can make us biased, I don't see any other option making sense
It seems that you have missed the necessary details in order for us to answer this question. But as I searched for it, I also found the right answer. So based on the given passage, this implies that the author believes that the two religions can coexist but can never be philosophically reconciled. Hope this answer helps.
Answer:
It can be both, because the definition of blithe is “showing a casual and cheerful indifference considered to be callous or improper.” And that is negative, but the other definition is “happy or joyous.” Which is positive
Explanation:
I would say "the town is 15 miles further"