Refer to the exhibit. Which number is sent as the caller ID when a user at extension 5001 places a call that matches this translation profile?

When someone dials 5001, it will match rule 2 because it exactly starts with 5(five) using the ^ sign and ends with [0-9] followed by $. In replace pattern you can see +1408777 & \0 means all set of match pattern. Thus, +14087775001.