Question: To replace a battery in a smoke detector.
Options:
Twist the detector off the wall mount and open the speaker compartment, using a screwdriver if necessary, and replace the battery.
Twist the detector off the wall mount and open the battery compartment, using a screwdriver if necessary, and replace the battery.
Answer: Twist the detector off the wall mount and open the battery compartment, using a screwdriver if necessary, and replace the battery.