Final answer:
The correct option is 3) Both are correct
Step-by-step explanation:
Mark is correct.
Hand trucks, also known as dollies, are indeed most useful when large quantities of products need to be moved in a short amount of time. They are designed to help workers transport heavy loads more efficiently and reduce the strain on their bodies. Hand trucks have a platform or frame with wheels, allowing users to stack items on them and easily move them from one location to another. They are commonly used in warehouses, retail stores, and delivery services.
Sarah is also correct.
Pallet jacks are used to move pallets, which are wooden or plastic platforms that hold multiple items. Pallets are commonly used in warehouses and shipping to store and transport goods. Pallet jacks, also known as pallet trucks or pump trucks, come in manual and electric versions. Manual pallet jacks require the operator to pump a handle to lift the load, while electric pallet jacks are powered by batteries and can lift heavier loads with less effort.
Therefore, both Mark and Sarah are correct in their statements about material handling equipment: hand trucks are useful for moving large quantities of products quickly, and pallet jacks are used to move pallets and can be manual or electric.