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Which outcome contributed to the long-term stability of Inca masonry structures?

A)Dry-stone fitting under seismic stress
B)Iron rebar reinforcement across joints
C)Mortar bonding distributing tension evenly
D)Rapid construction minimizing weather damage

💡 Explanation

Dry-stone fitting relies on frictional interlocking and redistribution of stresses rather than rigid bonding; therefore, seismic activity causes small shifts without collapse, because the energy dissipates through friction, rather than concentrating stress like mortar would.

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