Final answer:
The food worker should continue heating the fried rice until its temperature reaches 170*F to ensure food safety.
Step-by-step explanation:
The correct action for the food worker to take when reheating fried rice for hot holding and the temperature after an hour is 167*F is to continue heating until its temperature reaches 170*F. According to food safety guidelines, hot-holding equipment should maintain a minimum temperature of 135*F, and the rice should reach a temperature of at least 165*F to kill any potential bacteria. Since the current temperature is already close to the desired temperature, continuing to heat it until it reaches 170*F is the appropriate course of action to ensure food safety.