Which sentence is punctuated correctly?

Question

A. Sam likes to run marathons; he trains all year long
B. Sam likes to run marathons: the Boston Marathon: the New York Marathon: and the Iron Man Challenge.
C. Sam likes to run marathons: he is a talented painter.
D. Sam likes to run marathons; the Boston Marathon; the New York Marathon; and the Iron Man Challenge.

Answer 1

The correctly punctuated sentence is:

C. Sam likes to run marathons: he is a talented painter.

This sentence appropriately uses a colon to introduce additional information related to the first clause. The other options contain issues with punctuation or structure.