What is the most logical next event?

A man and dog are seen standing in a field with the dog looking to the owner. The man throws a frisbee off into the distance and the dog chases after it. the dog

Choose from:
(a). grabs the frisbee and runs back to the man..
(b). chases the frisbee and the owner holds onto him as he runs..
(c). runs up and down the field catching the frisbee and throwing it back to the owner..
(d). jumps on it's back and the owner holds the dog and swings him around..
(a).