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Choose a good topic sentence for the following paragraph.
He loves to run in the yard. When I throw sticks, he fetches them. On trips to the beach, he always splashes around in the water.
A) My dog, Spot, is a lot of work to care for.
B) Spot, my dog, is very lazy.
C) My dog, Spot, is a very playful dog.
D) My dog, Spot, is my favorite pet I own.
C) My dog, Spot, is a very playful dog.