1. Which of the following statement is correct about the program given below? #include<iostream.h> int BixTest(int x, int y); int BixTest(int x, int y, int z = 5); int main() { cout<< BixTest(2, 4) << endl; return 0; } int BixTest(int x, int y) { return x y; } int BixTest(int x, int y, int z = 5) { return x y z; }