In paragraph 2, the author makes the claim that adopting a dog from a shelter helps solve the problem of pet overpopulation in the United States. Which piece of evidence from paragraph 2 is a statistic that supports the claim?
A)Every year, between three and four million dogs and cats are euthanized because there is simply no room for them.
B)Animal shelters around the country are struggling to deal with a staggering surplus of pets.
C)By adopting a shelter dog, you can help solve the overpopulation problem-and open up a spot for another homeless canine.
D)Humane, no-kill shelters protect healthy, adoptable pets, but these shelters have limited space.