Final answer:
Permanent hair color chemically alters the structure of hair to provide a long-lasting color change available in permanent and demi-permanent forms.
Step-by-step explanation:
The type of hair color that creates a chemical change and is available in permanent and demi-permanent types is c) Permanent color. Permanent hair coloring involves a chemical process that changes the hair's structure, which means that the natural hair pigment is removed and synthetic color is deposited in its place. It’s a popular practice in hair dyeing to achieve a long-lasting color. The main three components required are an aromatic amine, a coupling agent, and an oxidant, and the process typically includes the oxidation of the aromatic amine (like 1,4-diaminobenzene or 2,5-diaminotoluene), interaction with a coupler, and then a final oxidation to form larger dye molecules that are locked inside the hair.