Which pfds would be considered readily accessible?

This question can be found on the test for Boater Safety. The PFDs that can be considered to be readily accessible are those worn by passengers, those kept in open bins near a passengers seat, and the ones that can be grabbed quickly by anyone on board. The PFDs that are not considered to be readily accessible would be any that are sealed in their original plastic bags. The PFDs must be put on in a reasonable amount of time during an emergency.