(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
vat fini
Finish
El 21
