What techniques can be used for reaching assists?

The option that emphasizes using a rescue tube or reaching with an arm is correct because these techniques are designed to maximize safety for both the rescuer and the victim. When performing a reaching assist, using a rescue tube provides buoyancy and an easy means for the victim to grab onto, reducing the risk of the rescuer being pulled under if the victim is in distress. Additionally, reaching with an arm allows the rescuer to keep a safe distance, preventing close contact that could result in panic from the victim and potential drowning risks for the rescuer.

Using a life jacket by throwing it may help, but it does not provide immediate physical support or assistance in keeping the victim afloat. Swimming out to the victim can be effective but also carries risks, especially if the rescuer may be overwhelmed by the water conditions or if the victim is panicking. Utilizing a boat can be suitable in some scenarios, but it is often not the quickest or safest method, especially in shallow water or crowded areas where maneuvering may be difficult. Thus, employing both a rescue tube and an arm reach maximizes safety and effectiveness in a rescue situation.