You are given the description of a commercial banking system. Convert the description into a Class diagram. You are required to use the UML notations to represent the classes, associations and cardinalities. A commercial bank has many branches and every branch has many tellers to process the daily transactions. The tellers can be relocated to different branches. But they can only operate at one branch at a time. A bank has many customers and every customer can register with one branch. The customers must have an account (saving or current) to use the banking services. The customers can interact with the tellers to perform the transactions. A customer can apply one or more loans with the commercial bank. The customers can perform transactions with their loans. A customer can apply a loan without having an account. The loan services are independent of the accounts. (15 marks)