A Supermarket Is Considering Automated Checkouts That Would Allow Customers

A supermarket is considering automated checkouts that would allow customers to scan the prices of their foods while shopping.Scanners would be placed around the store in different locations.Which statement,if true,would BEST support the claim that this idea would work better than a floating checkout idea?

A) There are good locations in the meat, dairy, and bakery aisles to support scanners.
B) Scanners would be operated by customers during peak times.
C) Portable scanners require yearly training for staff and customers.
D) Handheld scanner technology doesn't require extra resources to operate and is virtually self-managed.
E) The scanners are not portable and hence cannot be broken by customers.