Choose the sentence that correctly uses a colon. A) I am telling you that: she has got to go! B) Last time I went bungee jumping
: I did a swan dive from the platform. C) Before going sky-diving, be sure to bring the following: goggles, a parachute, and ample courage. D) Racing mountains bikes requires excellent physical fitness: but racing also requires a certain amount of recklessness.
The sentence that correctly uses the colon is "Before going sky-diving, be sure to bring the following: goggles, a parachute, and ample courage" (C).
It is important to remember that a colon should only be used after a complete sentence. It is generally used before a list. It can also go after a sentence when the second sentence explains, illustrates, or paraphrases the first sentence.