Look at the following statements:
(a)We should pick the right kind of elements
(b) When an entity has no non-primary key attribute, we should convert that entity to an attribute
(c) Use weak entities when-ever possible
(d) Always make redundancies
a. (a) and (b) are correct
b. (a) and (c) are correct
c. (a) and (d) are correct
d. (b) and (c) are correct
Answer: D