In an underground coal mine, the ventilation system suddenly fails due to a power outage, creating potential safety hazards for miners. Analyse the situation and choose the most appropriate course of action based on your analysis. a. Immediately evacuate all miners from the mine. b. Wait for the power to be restored and the ventilation system to resume normal operation. c. Use emergency breathing apparatuses and proceed to the nearest exit. d. Assess the current air quality and implement auxiliary ventilation measures. e. Instruct miners to continue working, as power outages are typically brief and not a significant concern