What part of the A/C plant's process deals with removing heat?

The correct choice focuses on the seawater system, which plays a crucial role in the air conditioning plant's process of heat removal. In marine environments, seawater is utilized to absorb and dissipate heat from the refrigeration cycle. This process is essential for maintaining temperature control within the ship.

As the air conditioning system operates, it generates heat that must be removed to ensure efficient cooling. The seawater circulates through heat exchangers where it absorbs this excess heat. This allows the refrigerant within the system to continue its cycle without overheating, effectively maintaining the desired air temperature within the living and operational spaces of the vessel.

Other components, like the compressor and chill water systems, are also involved in the air conditioning process but are primarily focused on circulating refrigerant and managing temperature without directly removing heat. Reefers, while they do involve cooling systems, are typically associated with preserving perishable items rather than the larger-scale heat management within the air conditioning plant.