The source document states: (C) Cpl Rice and Sgt Davis are attending the joint exercise. (U) The exercise begins on 1 May (C) The name of the exercise is Jagged Edge (S) The name of the attendees and the name of the exercise The Security Classification Guide (SCG) states: Compilation of exercise dates and location is Secret The new document states: (C) Cpl Rice and Sgt Davis will both be attending the Jagged Edge exercise. What concept is used to determine the derivatively classify the new document? A. Need-to-Know B. Original Classification C. Security Classification Guide D. Derivative Classification