Which of the Following Is the Purpose of a Beacon

Which of the following is the purpose of a beacon in a retail space?

A) to deliver promotions and rewards to customers as they shop in a physical retail space
B) to keep a running total on sales, returns, and transfers to other stores
C) to automatically reorder products when inventories decline to a certain level
D) to allow customers to automatically pay for items without cash or a credit card
E) to provide a seamless shopping experience for customers across shopping locations