#include &lt;iostream&gt;    using namespace std;    void mani&#40;&#41;    void mani&#40;&#41;    &#123;        cout&lt;&lt;&quot;hai&quot;;    &#125;    int main&#40;&#41;    &#123;        mani&#40;&#41;;        return 0;    &#125;
A. hai
B. haihai
C. compile time error
D. none of the mentioned
Answer:A
#include &lt;iostream&gt;    using namespace std;    void mani&#40;&#41;    void mani&#40;&#41;    &#123;        cout&lt;&lt;&quot;hai&quot;;    &#125;    int main&#40;&#41;    &#123;        mani&#40;&#41;;        return 0;    &#125;
A. hai B. haihai C. compile time error D. none of the mentioned
Explanation:We have to use the semicolon to declare the function in line 3. If we did means, the program will execute. 7. What is the output of this program?