Which of the following steps is NOT helpful in preventing drowning? A. Being able to swim 10 meters closer to the shore and then relax. B. Straightening the legs, press arms down, and then inhale. C. Raising arms, separating legs to lift the mouth above the water, and exhaling every 5 to 10 seconds. D. Relaxing in the rest position. Please select the best answer from the choices provided.