Khan Academy P/S passage question (Title: Is obesity contagious?)

Hello! Could anyone help me with this question from a PS passage from Khan Academy? Basically, for Question 4, I was between C and D and could not decide which one. D makes sense, but I couldn't have guessed it in the first place. The passage does not define what homophily means, but I assume they would expect me to reason my way to the answer, not to know what "homophily" mean in the first place. So, is there any psychosocial concept related to this that I 'suppose' to know? Is it always... Read more
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: MCAT Study Question Q&A Source Type: forums