The underlined word "affection" (Line 12～13) refers to

A．You can always get help from the specialists.
B．It is common sense that is the most important when choosing a dog.
C．You should decide what kind of dog you want.
D．Size and characteristics of the dogs should be considered too.

A．The color of the dog.
B．The price of the dog.
C．Whether the dog will fit the environment.
D．Whether the dog will get along with the other pets in the house.