Coca-Cola It Is Almost 100 Degrees Outside, and Ed Is on on His

Coca-Cola
It is almost 100 degrees outside, and Ed is on his way to the supermarket to buy groceries. His air conditioner is broken, so he is hot and thirsty. Ed notices a billboard featuring an ice-cold Coca-Cola. Ed remembers he is out of Coke. Once in the store, Ed heads straight for the soft-drink aisle and picks up a twelve-pack of Coke.
-Refer to Coca-Cola. When Ed realized he was out of Coke at home,which stage of the consumer decision-making process is this?

A) evaluation of alternatives
B) information search
C) purchase
D) postpurchase behavior
E) need recognition