The parent rock for this metamorphic rock had flat layers that were folded during metamorphism. Describe a process that could account for how this rigid gneiss was folded without breaking during regional metamorphism. ( Hint : How could you bend a brittle candlestick without breaking it

Foiliation

Explanation:

Metamorphism is the transformation in the existing rock type and means a change in the form when the rocks are subjected to changes in heat and pressure.  Regional metamorphism is also called dynamic metamorphism and foliation occurs when a rock s shortened along the axis during recrystallization. Such as mica, the foliated rocks is a product of the stress that deforms the rocks along the plane.

Ithink the answer is b

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