Answer: Option (4)
Explanation: When operating at near the ocean surface, the pressure is low but temperature is relatively warm.
As we know that the pressure increases with depth. Since the condition provided here is at the surface now, so the pressure is almost minimum.
Whereas the temperature can be considered to be relatively warm as the upper part of the ocean is generally warmer than the lower part. The lower part of the ocean is cold as sunlight is not able to penetrate at such greater depth.