Which disorder is characterized by the following: a pattern of recurring thoughts or behaviors, such as repeatedly checking if doors are locked, that prevents people from going about their day normally

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.   

Awould be the most dangerous

Ithink the answer is c.  hope this is right and