The properly marked source document states: (c) the training exercise will last three days. (s) the training exercise will begin 21 april. the security classification guide (scg) states: the length of the training exercise is confidential. the dates of the training exercise are secret. the new document states: ( ) the training exercise lasts three days, ending on 24 april. what is the classification of the statement in the new document?

Secret.

Explanation:

Derivative classification involves the incorporation of new information which has previously been classified and the labeling of the new document as per its classification. It identifies the authorized sources while classifying with the concepts 'revealed by' and 'contained in'.

As per the question, the statement in the new document could be classified as secret as it exemplifies confidential information relating to the length of the training exercise. Thus, it could be classified as 'secret'.

idk.

Explanation: