[Computer Science - CS2203 - Databases 1]

Which of the following statements is correct?

Select one:

a. A relation is in the first normal form if it has no more than one multivalued attribute.

b. Two or more attributes can be defined on the same domain.

c. A surrogate key is an attribute or set of attributes that uniquely identifies a record in a relation

d. There is a single attribute in each relation