Questions 11—13 are based on the following passage. You now have 15 seconds to read Questions 11—13. In the USA, how many children smoke every day

A．Sunscreen cream is essential in people’s life.
B．The dermatologists prefer to attribute the skin problems to sunshine.
C．People agree with the dermatologists’ opinion on using sunscreen cream.
D．Sunscreen cream actually increases the risk of skin cancer.