Given the invoice table with sample data, Please determine an appropriate Key. Then list the Functional Dependencies normalize the relation to BCNF.

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A: Code is given below : 

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Normalization

Normalization is the process of eliminating redundancy in a database by organizing the data into several smaller tables. The large tables are normalized (converted) into smaller tables by using normalization rules, so that a database administrator can easily handle them. It also eliminates insertion, deletion, and update anomalies.