You Are Designing a Security Solution for a Storage Array

Multiple Choice

You are designing a security solution for a storage array which stores customer credit card information. Data on the storage array must be encrypted and if necessary, you want to be able to revoke access to data on demand. In addition to encryption, which solution would allow you to do this in a secure and automated fashion?

A) Use a manual record deletion solution.
B) Physically destroy hard drives holding the data
C) Store data indefinitely.
D) Use the key management solution.