Respuesta :
Billy is using the memory rehearsal or rehearsal technique by which an individual engages of having to repeat words, thought, or memories in order to get the information or for the information to be remembered and stored in one’s memory.
He is using rehearsal. Rehearsal in psychology refers to a process of thinking wherein the information is repeated over and over to enable learning and memory retention. There are 2 types of rehearsal: maintenance and elaborative. In this scenario, Billy used the maintenance rehearsal type by repeating the names of the goods.