For the following responses, consider the simplified entity-relationship diagram (ERD) below that serves as a conceptual model for data relationships in a simple university database.

A, For the diagram above, interpret how all the main four entities are related. Where are there one-to-many relationships? Many-to-many relationships? b. There are some notable design problems in the relationships of the ERD shown here. Identify at least one issue and explain how it can be resolved.

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