A security engineer must use AWS Key Management Service (AWS KMS) to design a key management solution for a set of Amazon Elastic Block Store (Amazon EBS) volumes that contain sensitive data. The solution needs to ensure that the key material automatically expires in 90 days.
Which solution meets these criteria?
A . A customer managed CMK that uses customer provided key material
B . A customer managed CMK that uses AWS provided key material
C . An AWS managed CMK
D . Operating system-native encryption that uses GnuPG
Answer: B