Examine the Following Rule Base

Examine the following Rule Base. What can we infer about the recent changes made to the Rule Base?

A) Rule 7 was created by the 'admin' administrator in the current session
B) 8 changes have been made by administrators since the last policy installation
C) Te rules 1, 5 and 6 cannot be edited by the 'admin' administrator
D) Rule 1 and object webserver are locked by another administrator