Kara Is a 16-Year-Old Girl Who Is Concerned About Her

Kara is a 16-year-old girl who is concerned about her weight and is dissatisfied with her appearance. Both her mother and sister have struggled with anorexia. Justin is a 16-year-old boy with no history of anorexia in his family. Given the different contributing risk factors associated with these two individuals, how much more likely is Kara than Justin to develop anorexia?

A) twice as likely
B) 5 times more likely
C) 20 times more likely
D) 100 times more likely