When Defining Information (Fields)for a Relation,you Should Ensure That

Multiple Choice

When defining information (fields) for a relation,you should ensure that:

A) the information for this relation cannot be derived from other information.
B) the information for this relation can be found in other relations.
C) the information can be identified by the primary key and by other fields in the relation.
D) the information can be identified by the foreign key in this relation.