Final answer:
Kendra changes the batteries in her smoke detectors to mitigate the risk of fire, ensuring they function properly and potentially saving lives in the event of a smoke or fire hazard. So, the correct answer is option 1.
Step-by-step explanation:
Kendra changes the batteries in her smoke detectors twice a year in conjunction with daylight savings time because she is most likely concerned with the risk of fire.
By maintaining her smoke detectors regularly, Kendra is taking proactive measures to reduce the uncertainty over whether a serious fire or hazard awaits after an alarm and to mitigate the potential for extreme physical danger. This practice is a common recommendation by fire safety professionals to ensure the smoke detectors are functioning properly in case of an emergency.