Robert has taken up bicycle riding as a hobby and as a way to maintain his physical stamina. He understands he will need to drink adequate water when he is bike riding. He wants to buy a hydration system. Having gathered a great deal of information, he has decided to compare three systems: Waterbags for Roadies, Supertanker Hydropacks, and Fast Water. Robert is in the ________ stage of his purchase decision.
A) problem recognition
B) evaluation of alternatives
C) product choice
D) postpurchase evaluation
E) information choice
Answer: B