Every store on Main Street in Summitville has an awning, and all of these awnings are either green or red. If the statement above is true, which one of the following must also be true?
I. Some awnings in Summitville are green.
II. If a store in Summitville does not have an awning, then it is not on Main Street.
III. If a store in Summitville has a red awning, then it is on Main Street.

A) I only

B) II only

C) I and II only

D) I and III only

E) I, II, and III