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Which consequence resulted from differential thermal expansion in Mughal pietra dura inlay?

A)Stone tesserae dislodged abruptly
B)Glue composite degraded rapidly
C)Foundation layers settled unevenly
D)Grouting material cracked catastrophically

💡 Explanation

Detachment happens because coefficients of expansion varied substantially by material, creating stress, and inducing spallation into compressive stresses exceeding stone's tensile strength with rising temperature; therefore tessera lifted, rather than foundation tilt or merely cracked grout lines elsewhere.

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