How far must divers remain from active sea suctions of 50 GPM?

Divers must stay at least 50 feet away from active sea suctions of 50 gallons per minute (GPM) to ensure their safety. This distance is critical as strong currents and suction created around such equipment can pose significant risks to divers. Being within 50 feet helps to minimize the chance of being inadvertently caught in the suction or destabilizing the diver's position due to water movement.

Active sea suctions of that capacity can generate powerful water flows that may lead to divers being pulled toward the intake. By maintaining the recommended distance, divers can avoid encountering dangerous conditions and should also adhere to safe diving practices and protocols designed to protect both their well-being and the operation of the equipment. This regulation is often established based on studies and experiences in the field regarding the safety of divers when encountering high-flow water conditions.

The other options suggest distances that are either too short to ensure safety from the effects of the suction, which could lead to serious accidents or emergencies in the water.