A colon is mostly used to show that you are going to make a list of things after the comma. So, having that in mind, the correct answer is the first option - I edited the article and found: comma splices, sentence fragments, and misplaced modifiers.
You listed three things here, therefore you have to put a colon. If you are going to mention only one thing, like in the other examples, a colon is not needed.
Answer:
<em>Just say those question I am ready </em>
I think the answer is sentence two it doesnt really have anything to do with this article or paragraph
Hi there is the answers: Grandma knits socks because she has so much
free time, but none of us likes wearing them.
Without us knowing, our dog leaped over the
fence to chase the neighbor's cat.
I need to find a part-time job because I want to go
to the music festival this summer.
To be a good prince you have to put your people before anything
