A customer asks what type of extra power supply to purchase for their laptop. Which of the following is the BEST response?

A.
The power supply has to have the proper output voltage and equal or greater wattage than the original.

B.
The power supply has to have the proper output voltage and equal or lesser amps as the original.

C.
The power supply has to have the same watts and equal or greater voltage than the original.

D.
The computer should only be powered by OEM equipment.