If people are more demanding or harmful than supportive, you should limit your interaction with them to protect your own ______.

A．He knew Dr. Carter from his kids.
B．He saw the office on his way home.
C．A friend referred him to Dr. Carter’s office.
D．He found Dr. Carter’s number in the phone book.

A．The man enjoys traveling by car.
B．The man lives far from the subway.
C．The man is good at driving.
D．The man used to own a car.