Rita is a registered dietician. what does her work entail?

a.) prescribing medication for clients
b.) cooking healthy meals for students
c.) demonstrating how to use gym equipment
d.) making recommendations for healthy eating habits

Rita's work entails D. making recommendations for healthy eating habits   

True, using a pedometer can promote a physically active lifestyle.

You did not show us the image of the burger, but i shall try to answer as best i can.  when purchasing food, always consider the ingredients as well as the person who prepared it. consider if they were hygienic people or not, in case the burger was infected with bacteria. no mortal should place an infected burger into their mouth.