What is one key difference between an Amazon EBS-backed and an instance-store backed instance?

What is one key difference between an Amazon EBS-backed and an instance-store backed instance?
A . Amazon EBS-backed instances can be stopped and restarted
B . Instance-store backed instances can be stopped and restarted
C . Auto scaling requires using Amazon EBS-backed instances
D . Virtual Private Cloud requires EBS backed instances

Answer: A