A supertype/subtype hierarchy has which of the following features?
A
Subtypes at the lower lever in the hierarchy inherit attributes only from their immediate supertype.
B
Subtypes at the higher lever in the hierarchy inherit attributes only from their immediate subtype.
C
Attributes are assigned at the highest logical level.
D
Attributes are assigned at the lowest logical level.
Correct Answer: Attributes are assigned at the highest logical level.