Analyze the following program and answer the following questions:

#include

using namespace std;

int xfunction ( int n, long t)

{ cout << “int” ;

return n;

}

long xfunction ( long n)

{ cout << “long” ;

Return n;

}

int main()

{ cout << xfunction (10) ;

}

a. How many functions are there in this program? What are they?

b. What is meant by “function overloading”?

c. What is the difference between “function signature” and “function call”?

d. Will the program output anything? If yes, what is it?