Why are the days typically hotter in June than in December here in the US?

Question

D. Because the United States faces the sun in the summer and faces away from the sun in the winter

E.Because the tilt of the Earth causes the sun's rays to be more concentrated in the summer due to the angle at which they hit the Earth

I'm stuck on these two answer choices

Answer 1

They both make sense

Answer 2

E is the answer.

Answer 3

Is D a wrong statement though

Answer 4

Earlier you thought the answer was c,d, or e. I told you I agreed with E.
Read this.
http://www.loc.gov/rr/scitech/mysteries/seasons.html

Answer 5

http://www.loc.gov/rr/scitech/mysteries/seasons.html