Our DNA gives the instructions that determine human traits, like these.
The family history of lung cancer is uncontrollable, it is a risk yet the individual can't control that, however he/she can control the eating habits, smoking, and amount of exercise.
I believe Mélanie should talk to her friends and parents. Tell them how she feels. And she should find something she loves doing to make her confident and at ease with herself! She should embrace what she has!
Good luck! Hopefully this helped, if so can I get brainliest! Please and thank you ;)