What are the two carries to be utilized by the RS?

The correct choice describes two specific methods of carrying a rescue swimmer during an operation. Cora's chest carry is a recognized technique that provides a secure and stable way to transport an individual in a rescue scenario, ensuring that the swimmer can manage both the victim's weight and maintain balance during the carry.

Using another method alongside Cora's chest carry emphasizes the flexibility and adaptability needed in rescue situations. The need for multiple carrying techniques is important because different conditions or types of victims may necessitate different approaches. Each method can serve a specific purpose based on factors such as the victim's condition, the environment, and the rescuer's capability.

The other options mention various combinations of carrying techniques, but they do not accurately reflect the methods specifically utilized by rescue swimmers in practice or the standard terminology associated with them. Robust training often emphasizes particular techniques to ensure safety and efficiency during rescues.