Figuer: -The Table WRITTEN-BY Obtained in Converting the ERD Diagram to Diagram

question 34

Multiple Choice

Figuer:
-The table WRITTEN-BY obtained in converting the ERD diagram to a relational database will have the following primary key:

• A) Title
• B) Combination Title, Aname
• C) Aname
• D) Combination Title, Aname, author-rank-in-book

---

Definitions:

Economic Profit

The deviation between complete financial gains and all-encompassing charges, covering both transparent and obscured costs.

Normal Rate

Often refers to a benchmark interest rate considered typical or average within an economic environment or financial product.

Economic Profit

The difference between total revenues and total economic costs (including both explicit and implicit costs), reflecting the additional income generated over and above the opportunity costs.

Normal Rate

A standard or typical rate used as a benchmark or point of reference, often in contexts like interest rates or economic growth rates.