How Do Environmental Influences Affect Eating Habits

How do environmental influences affect eating habits? 

A)  Foods that are accessible and convenient are eaten most. 
B)  People tend to eat more when dining alone because no one is there to shame them. 
C)  Limiting food intake to the length of a favorite sitcom can be a healthy eating habit. 
D)  Offering several flavors of the same food at each meal lessens the desire for it. 
E)  Eating directly from a food package lessens the need to use large plates, which facilitates overeating.