B because it is very logical
Answer: D.
Explanation: It was Mr. Frink's plan to remain here until enough of the coarse grass had been cut and cured into hay to feed our horses across the desert
Answer: Neuroscientists have found evidence to suggest feeling powerful dampens a part of our brain that helps with empathy. Even the smallest dose of power can change a person. You've probably seen it. Someone gets a promotion or a bit of fame and then, suddenly, they're a little less friendly to the people beneath them.
Explanation:
the second bit is more formal, " You're six years old, aren't you?"
because, the other sounds very demanding or imperative, like as if you have to answer the question. so, it has to be the second line.