(Choose 1 answer)
A weak entity:
(a)Must have total participation in an supporting relationship
(b) Does not have a key
(c) Is an entity that has not any key-attribute
A. (a) and (b) are correct
B. (a) and (c) are correct
C. (b) and (c) are correct
D. (a) and (b) and (c) are correct
Exit (41
