What is the primary difference between a choice group and a partitioned group?

A.
A choice group requires that data must be distinguishable; a partitioned group does not.

B.
A partitioned group requires that data must be distinguishable; a choice group does not.

C.
A choice group can have both items and groups as components; a partition group can only
have groups as subtypes.

D.
A partitioned group can contain both items and groups as components; a choice group can only
contain groups as components.

Explanation: