Consider the following class definition.public class RentalCar{private double dailyRate; // the fee per rental dayprivate double mileageRate; // the fee per mile drivenpublic RentalCar(double daily, double mileage){dailyRate = daily;mileageRate = mileage;}public double calculateFee(int days, int miles){/ missing code /}}The calculateFee method is intended to calculate the total fee for renting a car. The total fee is equal to the number of days of the rental, days, times the daily rental rate plus the number of miles driven, miles, times the per mile rate.Which of the following code segments should replace / missing code / so that the calculateFee method will work as intended?A.return dailyRate + mileageRate;B.return (daily dailyRate) + (mileage mileageRate);C.return (daily days) + (mileage miles);D.return (days dailyRate) + (miles mileageRate);E.return (days + miles) * (dailyRate + mileageRate);