Multi-select problem: How does the next paragraph end?

She is throwing pink colored frisbee discs for the dog to run and fetch. every time she throws the disc

Options:
(A). or frisbee, the dog returns with a frisbee of his his own.;
(B). , the puppy curves around to dodge the thrown disc and the dog runs to fetch it.;
(C). , she gets another loop for the dog to chase.;
(D). , the dog gets excited and runs and fetches the disc for her.;
(D).