Which one of the following sentences contains an unnecessary colon?

Question

A. Here's the question on all of our minds: Will our team be able to defeat their arch rivals tonight?
B. Carlos has three goals in life: to graduate from college, own his own home, and work in the computer industry.
C. I wrote my shopping list and put: milk, soup, chicken, and ice cream on it.
D. She wants one thing: a new job.

Answer 1

I'll gladly check your answer.

Answer 2

i think its C but im not sure

Answer 3

Right.

http://www.grammarbook.com/punctuation/colons.asp