Which is the correct implementation?

A developer must create a CreditcardPayment class that provides an implementation of an existing Payment class. Public virtual class Payment { public virtual void makePayment(Decimal amount) { /*implementation*/ } }

Which is the correct implementation?
A . Public class CreditcardPayment extends Payment {
public override void makePayment(Decimal amount) { /*implementation*/ }
}
B . Public class CreditCardPayment implements Payment {
public virtual void makePayment(Decimal amount) { /*implementation*/ }
}
C . Public class CreditCardPayment extends Payment {
public virtual void makePayment(Decimal amount) { /*implementation*/ }
}
D . Public class CreditCardPayment implements Payment {
public override void makePayment(Decimal amount) { /*Implementation*/ }
}

View Answer

Answer: A