1) If the writer wished to add a concluding sentence to this opening paragraph, which of these would make the best
 choice?
 es
 A) There are, of course, differences of opinion among people concerning what makes for a good
 pet.
 B) There is something special about the dog that makes him especially endearing to human
 beings.
 C) Cats have certain advantages in some people's minds, but the majority like dogs.
 D) For some people, owning a pet is a kind of substitute for having a child.