Final answer:
Passengers on the A321S have access to life jackets, life rafts, and evacuation slides as flotation devices in case of emergency.
Step-by-step explanation:
Passengers on the A321S have access to various flotation devices in case of emergency. These include life jackets, life rafts, and evacuation slides.
Life jackets are typically located under the seats or in overhead compartments. They are designed to be easily put on and inflated to keep passengers afloat in water.
Life rafts, on the other hand, are large inflatable devices that can accommodate multiple passengers. They are usually located at designated exits and can be deployed in case of a water landing.
Lastly, evacuation slides can also serve as flotation devices. These slides are usually located at emergency exit doors and can be used as both escape slides and flotation devices in case of a water landing.