One solution to the multivalued dependency constraint problem is to:

Solution (By Examveda Team)

Option1: split the relation into two relations, each with a single theme.
This option involves breaking down the original relation into two separate relations, each focusing on a single theme. This helps in resolving the multivalued dependency constraint problem by organizing the data more efficiently.

Option2: change the theme.
Changing the theme of the relation may not always be a feasible solution as it can lead to data inconsistency and loss of information. It is not a recommended approach to resolving multivalued dependency constraints.

Option3: create a new theme.
Creating a new theme can be a viable solution to the multivalued dependency constraint problem. By introducing a new theme, the data can be organized in a more structured manner, reducing the chances of data redundancy and inconsistency.

Option4: add a composite key.
Adding a composite key can help in uniquely identifying each record in the relation, thereby addressing the multivalued dependency constraint problem. This approach can ensure data integrity and improve the overall efficiency of the database.

In conclusion, the most effective solution to the multivalued dependency constraint problem is to split the relation into two relations, each with a single theme. This approach helps in organizing the data more efficiently and resolving the issue of multivalued dependencies.