Which of the Following Statements About Children's Exposure to Smoking

Multiple Choice

Which of the following statements about children's exposure to smoking is correct?

A) Smoking is a preventable cause of childhood illness and death.
B) Passive exposure to tobacco smoke increases the risk of contracting a number of medical problems,including bronchitis,and asthma.
C) Passive exposure to smoke may lead to cancer in adulthood.
D) All of these are true.