Which of the following sentences contains correct capitalization?
A. We took a trip to the middle east.
B. The Manila envelope is on the table.
C. Of all of the seasons, summer is my favorite.
D. An important event in History was world war II.
"C. Of all of the seasons, summer is my favorite" would be the only sentence with correct capitalization, since the seasons, such as summer, do not need to be capitalized.