History Help Please is it a, b, c or d the arrow says the medieval era gives way to the renaissance and the age of exploration

folds are formed when heat and pressure is applied to the rock. the higher the temperature, the more pliable rocks become. folds are more likely to occur when the deformation caused by the compression is applied slowly. faults are defined as the displacement of rock that were once connected along a fault line.

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c. businesses/firms & government

c. the passage of the fifteenth amendment