Answer 4 would be the correctly punctuated sentence.
One way is to get all your work done on time then, if its is allowed in the class your in start writing something like a short story now, for during the day get all you need to get done done then, whenever its done grab a piece of paper and, a pencil and, start writing until you feel you have wrote enough.
I will go with:
D. Generally not a great contributor to pollution.
A good thesis presents the topic of your paper and your opinion related to the topic.
