For which of the following scenarios can you delete an entity?
A. The entity is custom and uses a system-defined global option set.
B. The entity is part of a managed solution and no other items are dependent upon the entity
C. The entity is part of an unmanaged solution and another unmanaged entity has a lookup field to the entity on one form.
D. The entity is system-defined and no other items are dependent upon the entity.
