If you cannot turn on a system using the power button, which of the following can be used to turn on a Macbook Pro (Retina. 13-inch. Late 2013 and Mid 2014) logic boards?
A. Two (2) switches that can be flipped.
B. Two (2) ports that be activated.
C. Two (2) pads that can be shorted.
D. Two (2) buttons that can be pressed.