Science follows the evidence where it leads, and pseudoscience starts with the conclusion, and works backwards to confirm it
The process is when the magma cools and make crystals
Hair Matrix
The hair matrix is wrapped almost totally around the papilla. It is a collection of cells, primarily comprising of epithelial cells and some pigment-producing cells called melanocytes. The continuous division of cells in the hair matrix forms the hair shaft (the strands of hair that we actually see) and the inner and outer root sheaths of the hair.
Explanation:
As I think last option is the correct suitable one.