Which best lists what a nursing assistant should give to a patient who is dehydrated? water, juice, soup
milk, coffee, water
O tea, juice, gelatin
soda, soup, milk

My best option would be Tea, Juice, and Gelatin

Water, juice and soup 100%. The key principle of dehydration is the need of water

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.   

Dairy, grains, protein, fruits, vegetables