Answer: (A) CustomerFirstName
Step-by-step explanation:
The naming conversion is the type of conversion that are generally used for naming various type of variable in the database. The naming conversion is important in various types of application development and in the database system.
It basically include the clear and concise naming for the procedure and table in the database. It is very helpful for searching purpose in the table more quickly and easily. Therefore, option (A) is correct according to the naming conversion rule.