Which statement regarding creating partitionable types is true?

A.
Subtypes of partitionable type are automatically created as partitionable types.

B.
When creating subtypes of a partitionable type, you must explicitly define the subtype as
partitionable.

C.
Subtypes that are not partitionable can be created with partitionable types as their supertype.

D.
Partitionable types cannot have any subtypes.