The Middle-Aged Client with Lung Cancer Asks Whether His Adult

The middle-aged client with lung cancer asks whether his adult children are at increased risk for this cancer.What is the nurse's best response?

A) "This disease is a random event and there is no way to prevent it."
B) "This disease is inherited, so your children have a 50% risk for developing it."
C) "Smoking is the main cause. Helping your children not smoke decreases their risk."
D) "They can avoid cancer by decreasing the fat they eat and by exercising more."