In parachuting, what does a deployment bag primarily function to do?

The function of a deployment bag in parachuting is to hold the parachute until it is deployed. This bag is designed to securely contain the parachute, keeping it neatly folded and preventing premature opening during the exit from the aircraft. It ensures that the parachute is ready for deployment at the correct altitude and under controlled conditions. When the skydiver activates the parachute, the deployment bag facilitates the proper sequence of opening by allowing the chute to extract in a controlled manner, ensuring both safety and functionality during the jump.

Options that involve storing extra equipment or protecting the parachute during transport serve different purposes and are not the primary function of the deployment bag. Additionally, while there are flotation devices used in certain parachuting scenarios, the deployment bag is not designed to serve that role. The focus of the deployment bag is distinctly on the containment and release of the parachute itself.