Consider the following function definition.
double funcTest(string name, char u, int num, double y)
Which of the following are correct function prototypes of the function funcTest?
a. double funcTest(string, char, int, double);
b. double funcTest(string n, char ch, int x, double t);
c. double funcTest(name, u, num, y);
d. int funcTest(string, char, int, double)