Which three guidelines are used to protect confidential information? (Choose three.)

A. Validate input before storing confidential information.

B. Manage confidential and other information uniformly.

C. Encapsulate confidential information.

D. Limit access to objects holding confidential information.

E. Clearly identify and label confidential information.

F. Treat user input as normal information.

G. Transparently handle information to improve diagnostics.