With regard to Centralized Authorization File $($CAF$)$ numbers, which of the following statements is true?

A$.$

A CAF number is assigned only to enrolled agents, CPAs, and attorneys.

B$.$

A CAF number indicates that an individual is either recognized or authorized to practice before the IRS.

C$.$

The CAF number is entered into the IRS database, which allows the IRS to send copies of notices to the representative.

D$.$

A power of attorney submitted without a CAF number will be rejected based on the absence of a CAF number.