An indicator of the brand's success in establishing a known presence within a community is also known as which of the following?

A) A leaderboard.
B) The fan base.
C) Badges.
D) Clickthroughs.
E) Social lock-in.

The fan base is the indicator of a brand's success in establishing a known presence within a community, as it shows that the brand has loyal and engaged followers who are actively supporting and promoting the brand within their community. A leaderboard is a competitive ranking board, badges are digital rewards for achievements, clickthroughs refer to the number of times someone clicks on a link, and social lock-in refers to a user being unable to switch to a different social platform.