What Cyclical Pathway Can Develop That Eventually Leads to Obesity

What cyclical pathway can develop that eventually leads to obesity?

A) A child binges because of depression and low self-esteem, purges and feels better, then feels safe to binge again.
B) A child eats because of feelings of depression and low self-esteem, gains weight, is rejected by peers, binges and continues to gain weight.
C) A child stops eating because of low self-esteem, becomes anorexic and then is successfully treated but still has negative feelings about her/himself.
D) A child eats normally and is of normal weight but is teased about their weight and begins to diet.