Which ocean zone has the lowest water pressure?

hadal zone
mesopelagic zone
abyssopelagic zone
epipelagic zone

Epipelagic zone

Explanation:

The epipelagic zone is the zone which exists over the surface of water. It is also called as the sunlight zone as it receives the maximum and direct sunlight from the sun. It is also called as photosynthetic zone as the sunlight is utilized by the plants and small phytoplanktons to conduct photosynthesis. This zone exhibit lowest water pressure as it lies in the superficial layers of the water body.