OPTION 1- Banking App In this exercise you will build a simple banking system according the design shown in Figure 1. aunts Bemkcourt Bocumtio:mumber ccountacurtio:umber Eaniccount boance nunber calstaAccoumaccourtio: numcar desectamount numbar fa unt wihanet unt smEc mumber setale:sting deseriaccountsasen:sng:Baniecoun SavingAccount CumentAccount nittyl mnt cetuteserembenetPercentnge numbe dedudFee) Figure 1. Banking System Class Diagram 1) Create BankAcount class with the following properties: accountNo, balance. This dass should have a constructor to initialize these 2 properties. This class should have these methods: - deposit(amount): this method adds the amount to the balance withdraw(amount): this method subtracts the amount from the balance tostring): this method return Account # accountNo has QR balance. eg, Account #123 has QR1000. Export the BankAccount class module as an object. 2) Create app.js program. Declare accounts variable array and initialize it with the following ассou accounts: accountNo balance 123 1000 234 4000 345 3500 Display the content of the accounts array. 3) Create SavingRAccount class that extends BankAccount with an extra property: minBalance and an extra method distributeBenefitlbenefitPercentage). This method computes the monthly benefit using the balance += (balance * benefitPercentage). The constructor should extend BankAccount to initialize the minBalance. Also, extend the tostrine) to indicate that this is a Saving Account. eg, eg, Saving Account #123 has QR1000. Test savingAccount in app.js using the same table above and use a minimum balance of 500 for all accounts. 4) Create CurrentAccount class that extends BankAccount with an extra property: monthlyfee and an extra method deductfee). This method subtracts the monthlyfee from the account balance only if the deducted fee is less than the balance. The constructor should extend