Which sentence demonstrates correct use of the colon? 
 A) Friday's grammar test will cover: the following areas capitalization, punctuation, and diagramming.
 B) Friday's grammar test will cover the following: areas capitalization, punctuation, and diagramming. 
 C) Friday's grammar test will cover the following areas: capitalization, punctuation, and diagramming. 
 D) Friday's grammar test: will cover the following areas capitalization, punctuation, and diagramming.