What Key Role Does the Bacterium Thermus Aquaticus Play in the Polymerase

What key role does the bacterium Thermus aquaticus play in the polymerase chain reaction (PCR) ?

A) It is the source of the four nucleotides needed in PCR.
B) It serves as the platform on which PCR proceeds.
C) It provides the heat-stable DNA polymerase used in PCR.
D) It aids in winding the newly produced DNA molecule with proteins to form a chromosome.
E) It acts as a buffer to maintain a constant pH in the PCR solution.