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← HistoryWhich outcome accelerated the Song Dynasty's military advancement due to improved gunpowder?
A)Metal-barrel hand cannon creation✓
B)Development of multi-stage rockets
C)Widespread naval mine deployment
D)Creation of superior iron armor
💡 Explanation
The advent of gunpowder rapidly improved artillery, therefore facilitating the creation of metal-barrel construction (hand cannons) because higher explosive pressures could be contained with cast iron, rather than relying on weaker materials or rocketry breakthroughs.
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