Answer:
The one about the cousin
Explanation:
All the other ones have comma errors/improper placement. Such as how one doesn't have the ending comma as it should. I know I didn't describe this quite well, but it should be enough for you to know what I am speaking of. Have a good day, osbornmm27.
D. because it is a different subject
We could make sure we put paper glass and recycling in the right bins and we could turn off the lights in the day and open the curtains instead.