Which of the following statements about the information contained in a Database Description packet are true?
(Choose three)

A.
A Database Description packet contains all information about each LSA.

B.
A Database Description packet contains only the header of an LSA.

C.
The header of an LSA is the unique identifier of the LSA.

D.
The header of an LSA is only a small portion of all the data of the LSA.

Explanation: