Which of the Following Is an Example of a Need

Which of the following is an example of a need?

A) Marilyn decides she would like to have a Wendy's milkshake.
B) Michael will only go to a movie if Bruce Willis is the lead actor.
C) Although she claims to be thirsty,Joanna will not buy a soda from a vending machine that does not contain Diet Coke.
D) Adam realises he is hungry.
E) Even though there are many types of flour on the market,Brenda will buy only the Gold Medal brand when she decides to bake.