What are the main differences between MS-CHAPv2, EAP-MS-CHAPv2 and PEAP-EAP-MS-CHAPv2?

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What are the main differences between MS-CHAPv2, EAP-MS-CHAPv2 and PEAP-EAP-MS-CHAPv2?
At the moment, it is clear that:
1. PEAP-EAP-MS-CHAPv2 is a tunneled EAP-MS-CHAPv2
2. MS-CHAPv2 is an authentication protocol, can be used with or without EAP.
3. It is not very clear how EAP-MS-CHAPv2 works - and how it differs from just MS-CHAPv2

. This screen shows that there is just PEAP, in which you can enable EAP-MS-CHAPv2, there is just EAP-MS- CHAPv2 is MS-CHAPv2 without EAP.
Explain, please, what's what, in short, because I'm confused.