Whats The Difference Between A Cpht And A Rpht Whats The Difference Between A Takamine EG440SC And A EG440C?

Whats the Difference between a Takamine EG440SC and a EG440C? - whats the difference between a cpht and a rpht

I do not understand the difference ... I am responsible for CG in the coming days and I'm sure they can talk to me, but in the meantime, the voltage to kill me! =] Even if someone this guitar would appreciate some comments ...!
Thank you,
Jake