In which situation would the centers for disease control be involved? a) to approve a new drug created by a company in idaho b) to approve donations of food to a country in famine c) to raise money to fight heart disease d) to monitor a flu epidemic at a school in florida

An epidemic is a large and localized outbreak of a sickness or disease.  a pandemic is a large global outbreak of a sickness or disease. 

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.