How is the concept of Pervasive Encryption a potential solution to address the concern?

A z/OS customer is concerned about complying with privacy rules.

How is the concept of Pervasive Encryption a potential solution to address the concern?
A . It is implemented without application or database changes.
B . It is implemented by only requiring database changes.
C . It is implemented by requiring application changes.
D . It is implemented by encrypting only the data at rest.

Answer: A