I think the one that caused by pressure from a large-scale geological event is : A. Regional
Regional metamorphism covers a large area of continental crust including several mountain ranges and tectonic plates
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Answer:
The Sun's temperature, which reaches around 15 million degrees Celsius in its core, steadily decreases with distance from the core, falling to 6000°C at its 'surface'. ... Instead, it rises to about 10,000°C in the chromosphere, and exceeds a million degrees Celsius in the corona.
C. phyllite is the intermediate between slate and schist.