Answer:
Displayport uses a lower voltage than DVI and HDMI.
Explanation:
DisplayPort are cables and connector used to stream video, audio, usb or other kinds of data to the monitor screen of a computer. As defined, it can send video and audio signals on the same cable, over a long distance at a high speed.
The voltage requirement for DisplayPort is 3.3 volts while HDMI and DVI uses 5 volts.
I've never seen that third syntax. If it's legit, it probably does the same as I and II, which are the same.
So, you can be able to make a prediction and understand the cycle.
