Question: Why is the 'New Austrian Tunneling Method' ( NATM ) significant in tunnel engineering? A ) It emphasizes rapid excavation and minimal support, regardless of

Why is the 'New Austrian Tunneling Method' (NATM) significant in tunnel engineering?
A) It emphasizes rapid excavation and minimal support, regardless of geological conditions
B) It is an environmentally friendly method that uses no machinery
C) It adapts to the geological conditions, using the surrounding rock mass to stabilize the tunnel
D) It requires tunnels to be lined with gold for improved durability

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