A great benefit that might surprise you is that pets are not expensive at a shelter. 
Which evidence supports the author's reason? 
A: You won't have a problem finding a gentle or sociable pet at the shelter. 
B: Another advantage to visiting the Ferndale Shelter is that the workers have gotten to know the pets well and can help you make your choice. 
C: Other animals wind up at the shelter because they strayed too far from their homes and their families can’t find them. 
D: According to Toni, 25% of their cats and dogs are undoubtedly purebreds.