The following function prod returns the multiplication of two numbers. Rewrite this function to be void function (Pass-by- Reference with Pointer Arguments)? How to cal the function? double prod (int a, int b) ( return a*b; } int main() { int number1, number2; cout < > number1; cout < >>> number2; cout < < "The product is: " < < prod(number1, number2) < < endl; return 0;