Questions 19 to 22 are based on the conversation you have just heard.

A．A mother giving birth in spring will eat less vitamins than those giving birth in autumn.
B．In summer, babies are prone to infections of the digestive system.
C．In Austria, adults born in autumn lived about four months longer than those born in spring.
D．Although nutrition at all times of the year has improved, the seasonal pattern persists.

A．She wants to know what they talked about.
B．She always talks on the phone for that long if it’s toll free.
C．They talked on the phone for too long.
D．She hasn’t so much free time to talk on the phone for that long.