I am not sure but I think that it is either the First option or the Third option but you would probably need more information.
Answer:
it is called a dotted half note
Answer:
b. ethernet
Explanation:
It was an ethernet that was developed in the 1970s that improved the ability to send the information over the network. It is the most widely used method to connect the computers in a LAN or the local area network, ever since 1980 when it was first introduced for commercial use. And it is being used in bulk even today.
I would do top to down approach start from the top and work your way down to the bottom.
