A and B are not run-on sentences because A doesn't even have a comma in it. And B has a semicolon. Something that would prevent a run-on sentence.
It comes down to C or D. D has a nonrestrictive clause.
My finally answer comes to C.
Answer:
The members of the Graham family have basically two different points of view, some defend slavery and war, and some are against it
Explanation:
During dinner time the Graham family have a strong conversation with really different points of view, while Creighton is against war and slavery, Wiles defends the idea of war and is against the arguments of president Lincoln when he tries to create a peaceful environment for both sides of the coin. Really angry, Wiles states that the greatest problem is greed more than slavery. He mentions as well that the south and north should be separated each one with its own ideas. He thinks, the south should simply stay alone and leave in peace the north with its slave. During the argument, it is also possible to notice how Tom stays quite but also really angry about the fight.
During dinner time the Graham family have a strong conversation with really different points of view, while Creighton is against war and slavery, Wiles defends the idea of war and is against the arguments of president Lincoln when he tries to create a peaceful environment for both sides of the coin. Really angry, Wiles states that the greatest problem is greed more than slavery. He mentions as well that the south and north should be separated each one with its own ideas. He thinks, the south should simply stay alone and leave in peace the north with its slave. During the argument, it is also possible to notice how Tom stays quite but also really angry about the fight.
Answer:
you just need a highschool diploma
1. chose (she chose him vs. he had been chosen by her)
2. selected (she selected him vs. he had been selected by her)
3. organized (she organized the room well vs. the room will be well organized by her)
4. base (base it on that vs. it was based on that)
5. set (he set the date vs. the date was set)
I'm not sure what format your teacher wants these in, but that's how I'd do it.