Wi-Fi is which of the following?

Hello,
may be completly wrong here but the question is asked imho in a very ambiguous way. As standards like 802.11n and 802.11ac make use of the multiplexing and some how (in right distance and under ideal circumstances) I managed to achive speeds above 100Mbps, when transfering data between two devices connected to one AP.

I guess what I'm really trying to achive is better understanding of current Wi-Fi technology as I could swear the wi-fi not all but partially is mulitplex 11n supports MIMO SDM where 11ac supports Multi User MIMO, so by the looks of it the AP and clients use more than one antenna to communicate.Well I would like to hear form you guys and I hope I will learn some valuble information.

I didn't find the right solution from the Internet.
References https://community.spiceworks.com/topic/2019623-wi-fi-is-which-of-the-fol...

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