3. How do robots help speed up the fulfillment of orders at some Amazon warehouses?
A. The robots predict what items will be needed and gather them before an order is made.
B. Robots pick, pack, and ship items by themselves without workers’ assistance.
C. Amazon’s robots can stock more shelves per hour than a person.
D. Robots move items, reducing the distance employees have to walk to collect items.
You may use this URL https://scienceworld.scholastic.com/issues/2020-21/111620/delivered-to-your-door.html#1110L to help you.