The first and third is correct. The second and last are incorrect.
Explanation:
You can mostly tell in these kinds of things just by saying them out loud. And also see how good they are if you replace the colons with commas. If you say it aloud, the correct colon ones will have a bigger pause where the incorrect is shorter. The last one is tricky.
Simplified - Colons are used to introduce a second sentence clarifying the first.
BTW, you aren't aloud to post test questions on here, just sayin'.
At dusk when it starts to get dark out and you need the headlights to see -- and be seen. It can depend on different states but usually between sunset and sunrise. or in light fog, rain and snow.
