A) Using the class 'BankAccount' defined in the assignment 2, modify it according to the following: 1. Remove data member "Bank Account Type (Current Account, Savings Account)" from the BankAccount class. 2. Modify the parameterized constructor to take balance as argument. 3. Add copy contractor. B) Create an inheritance hierarchy where "BankAccount" is the base class and "SavingAccount" and "CurrentAccount" are derived classes. With the SavingAccount, the Bank pays interest 4% each Year to the customer based on the account balance. With the CurrentAccount, the Bank subtracts 1 JD as charges for each withdraw transaction. 1. Initialise a SavingAccount and CurrentAccount objects with an initial balance 100ID. 2. Write the code of 'Calculatelnterest' function for the SavingAccount class. It should calculate the interest yearly and add it to the balance. 3. Write the code of 'TransactionCharge' function for the CurrentAccount class. It should deduct 1JD from the balance after each withdraws transaction. 4. Create a "FlexyAccount" class that drived from SavingAccount and CurrentAccount. 5. create 'CalculateInterest' function for the Flexy Account class, knowing that the interest rate is 1%. 6. create TransactionCharge function for the Flexy Account class, knowing that the charge for each withdraw transaction is 0.5 JD. 7. Write the appropriate code for the destructor of each derived class. 8. Write the code of 'PrintBank' function for each derived class. C) Write a program (main) that will do the following: 1. create a BankAccount' object with 1000 JD in Balance. 2. create a SavingAccount object with 400 JD in Balance. 3. create a CurrentAccount object with 2000 JD in Balance. 4. display the balance of SavingAccount object after one year, using PrintBank function. 5. display the balance of CurrentAccount object after 10 withdraw transactions,, using PrintBank function. 6. create a Flexy Account object with 800 JD in Balance. 7. create a FlexyAccount object using a copy constructor. 8. display the balance of FlexyAccount object after 5 withdraw transactions performed during the last 3 months,, using PrintBank function