That would be a checklist
Answer:
the first one because its connecting two sentences together
Explanation:
I'll mow the lawn today is a sentence that can stand by itself. you trim the bushes tomorrow is also a complete sentence by itself. When you add two sentences together you need a comma.
My dad started a new job as a buisness man they have really nice curtains.
Im going to go to a new school and im excited, the girl that sits next to me has a cute purse.