The correct answer is: A. Centrifugal pump
A centrifugal pump is a type of pump that uses centrifugal force to move fluids. The fluid enters the pump at the center and is then accelerated by the impeller, which is a rotating disk with blades. The accelerated fluid is then discharged from the pump at the periphery.
Centrifugal pumps are often used to move liquids, but they can also be used to move slurries, which are mixtures of liquids and solids. The solids in the slurry are broken up by the centrifugal force generated by the impeller.
Reciprocating pumps are another type of pump that can be used to move slurries. However, reciprocating pumps are not as effective at breaking up solids as centrifugal pumps.
Pneumatic ejectors are not pumps. They are devices that use compressed air to move fluids. Pneumatic ejectors are not effective at breaking up solids.
Therefore, the correct answer is: A. Centrifugal pump