Final answer:
The proactive activity a pharmacy technician can do to prepare for a predicted natural disaster is to contact customers to pick up early.
Step-by-step explanation:
The correct proactive activity a pharmacy technician can do to prepare for a predicted natural disaster that may cause power loss, heating or AC loss, and phone loss is to contact customers to pick up early. By contacting customers in advance and notifying them to pick up their medications early, the pharmacy technician ensures that customers have their medications during the disruption caused by the natural disaster. This proactive approach helps to minimize any potential negative impact on patient care.