A Class Diagram has been provided for below. Answer the following questions based on the given diagram. Bank Bankld: int Name: string Location: string Teller Id: int Name: string CollectMoney OpenAccount Close Account LoanRequest Provideinfo IssueCardo Customer Checking Id: int Customerld: int Id: int Name: string Address: string Phone No: int AcctNo: int Account Id: int Customerid:int .1 Generallnquiryo -DepositMoney Withdraw Money OpenAccount Close Account ApplyForLoano -RequestCardo Savings Id:int Customerld: int Loan Id: int Type: string Accountld: int Customerld: int Questions: (5 marks) a. Provide a list of all classes used in this class diagram. b. Explain the relationship between Account and Checking class. c. Explain the relationship between Customer and Loan class. d. Provide the details for the association class in this class diagram where appropriate