questions 3 and 4 answered on critical thinking worksheet need help !

Hello,

I need questions 3 and 4 answered using this article regarding obesity on this link below. I have attached the critical thinking worksheet and highlighted questions 3 and 4.  only these 2 questions need to be answered. 

https://journals-sagepub-com.contentproxy.phoenix.edu/doi/full/10.1177/0890117116670305?%20utm_source=summon&utm_medium=discovery-provider