Bob and Joe Both Have Administrator Roles on Their Gaia

Bob and Joe both have Administrator Roles on their Gaia Platform. Bob logs in on the WebUI and then Joe logs in through CLI. Choose what BEST describes the following scenario, where Bob and Joe are both logged in:

A) When Joe logs in, Bob will be logged out automatically.
B) Since they both are logged in on different interfaces, they both will be able to make changes.
C) The database will be locked by Bob and Joe will not be able to make any changes.
D) Bob will receive a prompt that Joe logged in.