Doors within the means of egress must not be equipped with a latch or lock that requires the use of a key or tool to open from the inside of the building. A _______________ must be provided with ______________________, or another simple type of releasing device with an obvious method of operation, even in darkness.
a) Panic hardware; one motion
b) Deadbolt; an electronic keypad
c) Card reader; biometric authentication
d) Chain lock; dual access