Answer: Submersible sump pump
Explanation: Submersible sump pumps are generally quieter than pedestal sump pumps. This is because submersible pumps are installed directly in the sump pit and submerged in water, which helps dampen noise produced during operation. In contrast, pedestal sump pumps have the motor positioned above the sump pit, which can result in more noticeable noise as the motor operates. Therefore, if noise level is a concern, a submersible sump pump may be the preferable option for quieter operation.