Martin Knows That Excessive Exposure to the Sun Can Increase

Martin knows that excessive exposure to the sun can increase a person's risk of skin cancer and cataracts.However,he can't resist getting out and enjoying a sunny day,and putting on sunblock seems to him to be a major inconvenience.Which trend does Martin's current pattern of behaviour illustrate

A)  The risks associated with health-impairing habits tend to lie in the distant future. 
B)  People tend to rationalize high-risk behaviours by pointing out healthy habits that offset their unhealthy habits. 
C)  People often overestimate the risks associated with their own health-impairing behaviours. 
D)  Many health-impairing habits creep up on us.