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

A. Treat user input as normal information.

B. Encapsulate confidential information.

C. Validate input before storing confidential information.

D. Limit access to objects holding confidential information.

E. Transparently handle information to improve diagnostics.

F. Manage confidential and other information uniformly.

G. Clearly identify and label confidential information.