Luigi Knows That Research Has Determined That Smoking Increases the Risk

Luigi knows that research has determined that smoking increases the risk of various types of cancers; however,he is sure he won't develop cancer.What does Luigi's pattern of behaviour illustrate

A)  People often underestimate the risks associated with their own health-impairing behaviours. 
B)  Many health-impairing habits creep up on us. 
C)  People tend to rationalize high-risk behaviours by pointing out healthy habits that offset their unhealthy habits. 
D)  People believe the risks associated with health-impairing habits are overstated by media sources.