Which of the following is the class being discussed?

You are employed as a developer at ABC.com. ABC.com has a single Active Directory domain, named ABC.com.
You are in the process of running a training exercise. You are discussing a class of the
Microsoft.SharePoint.Client.Social namespace that identifies a user, document, site, or tag in
social feed and following activities.
Which of the following is the class being discussed?

A.
The SocialFollowingManager class.

B.
The SocialFeedManager class.