Questions 11 to 18 are based on the conversation you have just heard.

A．Business success takes a high level of activity.
B．Top managers are generally gifted at judging people.
C．Business success takes the ability to cope with stress.
D．Different executives make their communications come through in different ways.

A．Because they want to sell canteens,
B．Because they want to educate the tourists about park conditions.
C．Because the tourists may get sick or die from dehydration.
D．Because the tourists may get lost.