Which of the Following Is the MOST Secure Method of Storing

Multiple Choice

Which of the following is the MOST secure method of storing critical and sensitive system information (e.g., administrative passwords, trusted signing keys) ?

A) Store the information encrypted and offline in a storage safe.
B) Encrypt the information using a zip file with a password.
C) Utilize a drive with full disk encryption enabled.
D) Create an encrypted virtual disk for storage.