According to the World Health Organization (2009), More Than ______

According to the World Health Organization (2009) , more than ______ of cancer could be prevented by modifying or reducing risk factors such as tobacco use, obesity, low intake of fruits and vegetables, physical inactivity, alcohol use, and sexual transmission of the HPV.

A) 20%
B) 30%
C) 40%
D) 50%
E) 60%