Final answer:
The name of the new MySQL database to be created is not identifiable without additional context. It could be related to the assignment, standard practices, or be a generic placeholder needing replacement.
Step-by-step explanation:
The specific name of the new MySQL database that needs to be created cannot be determined from the options provided without additional context. When you are tasked with creating a new database, the name of the database is often provided in the instructions accompanying the assignment or by the use of standard practices within your company or project. For example, 'whatabook' might be a suitable name if the database is for a book-oriented project, whereas 'mydatabase' or 'newdb' could be generic placeholders that need to be replaced with more descriptive names. The name 'mysql_db' could cause confusion as it resembles the naming convention of system databases used by MySQL.