To execute DML statements (i.e. insert, delete, update) in the database, the user needs to know the methods or classes available to achieve this.
Option A is incorrect because there are no predefined classes in Java named InsertStatement, DeleteStatement or UpdateStatement for executing DML statements in a database.
Option B is correct. You can execute DML statements by invoking the execute() or executeUpdate() method of a normal Statement object. The execute() method is used for executing any type of SQL statement and can return a boolean value indicating whether the query returns a ResultSet or not. The executeUpdate() method is used for executing insert, delete, and update statements and returns an integer value representing the number of rows affected by the query.
Option C is incorrect because there are no predefined methods named executeInsert(), executeDelete() or executeUpdate() for executing DML statements in Java.
Option D is incorrect because there is no class named DataModificationStatement in Java.
Therefore, the correct answer is:
The Answer is: B