Whizlabs versioned their package as 20.08.11-rc1. 
What type of versioning did Whizlabs implement?

Answer options:

A.CalVer
B.SemVer
C.Hybrid
D.Proprietary

Correct Answer: A 
Version expression "20.08.11-rc1" has a Date based or CalVer structure: 
YY.0M.Micro-Modifier, 
where 
YY or YYYY is the year number: 20 or 2020 
0M or MM is the month number: 08 
Micro or Patch is the patch number: 11 
Modifier is an optional tag: rc1 Option B is incorrect. From the first sight, this version seems to be based on SemVer. However, the SemVer system does not allow leading zeros for the numeric identifiers.
Based on SemVer, the version expression should look like 20.8.11-rc.1. All other options are incorrect.
For more information about versioning strategy, please visit the below URLs- 

https://calver.org/
https://docs.microsoft.com/en-us/nuget/concepts/package-versioning
https://semver.org/