Of the Following Children, Who Is Most Likely to Become

Of the following children, who is most likely to become obese?

A) Mackenzie, whose parents are vegans and encourage her to participate in gymnastics
B) Juan, whose parents both struggle with their weight, but cook balanced meals
C) Jessica, whose parents are poor and who both work two jobs, so the family often eats fast food
D) Luanne, whose parents are conscious of their weight, so the family participates in nightly walks