When a relation contains an atomic value, it is a ___ relation.a.3NFb.BCNFc.1NFd.2NF

To determine the correct answer to the question regarding the type of relation when a relation contains atomic values, we need to consider the definitions of the various normal forms:

1. 1NF (First Normal Form): A relation is in 1NF if it contains only atomic (indivisible) values, and each entry in the column is of the same kind.

2. 2NF (Second Normal Form): A relation is in 2NF if it is in 1NF and every non-prime attribute is fully functionally dependent on the primary key.

3. 3NF (Third Normal Form): A relation is in 3NF if it is in 2NF and all the attributes are functionally dependent only on the primary key.

4. BCNF (Boyce-Codd Normal Form): A relation is in BCNF if it is in 3NF and for every functional dependency $X \rightarrow Y$, $X$ is a superkey.

Summary

Since the question asks about a relation containing atomic values, the correct answer is:

Final Answer

c. 1NF