What happens to the data on an instance if the instance reboots (intentionally or unintentionally)?

A.
Data will be lost

B.
Data persists

C.
Data may persist however cannot be sure

Explanation:
Instance Store Lifetime
You can specify instance store volumes for an instance only when you launch it. The data in an instance store
persists only during the lifetime of its associated instance. If an instance reboots (intentionally or
unintentionally), data in the instance store persists. However, data in the instance store is lost under the
following circumstances:
The underlying disk drive fails
The instance stops
The instance terminates
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/InstanceStorage.html