Which line in the following program contains the prototype for the showDub function?
1 $\quad$ #include <iostream>
2 $\quad$ using namespace std;
3
4 $\quad$ void showDub(int) ;
5
6 $\quad$ int main()
7 $\quad$ {
8 $\quad$ $\quad$ int x = 2;
9
10 $\quad$ $\quad$ showDub(x) ;
11 $\quad$ $\quad$ cout << x << endl;
12 $\quad$ $\quad$ return 0;
13 $\quad$ }
14
15 void showDub(int num)
16 {
17 cout << (num * 2) << endl;
18 }

Question

Which line in the following program contains the prototype for the showDub function? 
1 $\quad$#include <iostream>
2 $\quad$using namespace std;
3
4 $\quad$void showDub(int);
5
6 $\quad$int main()
7 $\quad${
8 $\quad$$\quad$int x = 2;
9
10 $\quad$$\quad$showDub(x);
11 $\quad$$\quad$cout << x << endl;
12 $\quad$$\quad$return 0;
13 $\quad$}
14
15 void showDub(int num)
16 {
17 cout << (num * 2) << endl;
18 }
A) 4
B) 6
C) 10
D) 15

Quizplus · Accepted Answer

Line 4 contains the prototype for the showDub function, which declares the function's name, return type, and parameter list.

Which Line in the Following Program Contains the Prototype for the ShowDub