What does the pen-symbol in the left column mean?

View the rule below.

What does the pen-symbol in the left column mean?
A . Those rules have been published in the current session.
B. Rules have been edited by the logged in administrator, but the policy has not been published yet.
C. Another user has currently locked the rules for editing.
D. The configuration lock is present. Click the pen symbol in order to gain the lock.

Answer: B