B, because it doesn't exactly quicken as in a, no odd characters are introduced, and these not really any details we need to know that are left out. I picked B because there are intentionally larger words.
B) The most popular careers in the year 2015.
It means life has its ups and downs. Everything is not always great or not always bad. Somehow it all kind of balances out
I have not read to kill a mocking bird. sorry