"The are designed to help individuals age 2 and over improve the quality and content of their diet and make other lifestyle choices to lower their risk of chronic diseases and conditions, such as diabetes mellitus, cardiovascular disease, certain cancers, osteoporosis, and obesity."

The Dietary Guidelines for Americans

Explanation:

The Dietary Guidelines for Americans  produced by the HHS and the U.S Department of Agriculture is a  nutrition information designed for individuals from  two years and above  to make healthy  diet and lifestyle choices. This guideline is usually reanalyzed every five years to make sure set guidelines are at par with latest and improved  research of which the last was modified in 2015, and would run its course through this year, 2020

Having  Healthy eating habits which includes consuming foods like vegetables, fruits, whole grains, fat-free and low-fat dairy products, lean meats, seafood, other protein foods, and oils together with healthy lifestyle such as regular physical activities, have been shown to  reduce risks of chronic disease such as diabetes mellitus, obesity, certain cancers etc  throughout their lives.

answer(c); cultural values may have affected jack's grandmother's and aunt's belief about extended family;