Given this function of a superclass: virtual double calculate_MPG(double speed) {...} Which of the following functions of a subclass overrides it?

A) double calculate_MPG(int speed) {...} B) double calculate_MPG (double speed, int ( x ) ) ( {ldots} )

C) double calculate (double speed) ( {ldots} ) D) double calculate_MPG(double s) {...}

Given this function of a superclass: virtual double calculate_MPG(double speed) \{...\} Which of the following functions of a subclass overrides it? double calculate_MPG(int speed) {} double calculate_MPG (double speed, int r) \{... double calculate (double speed) (...\} double calculate_MPG(double s) \{...\}