#include &lt;iostream&gt;    using namespace std;    #define SquareOf(x * x    int main&#40;&#41;    &#123;        int x;        cout &lt;&lt; SquareOf&#40;x + 4&#41;;        return 0;    &#125;
A. 16
B. 64
C. compile time error
D. none of the mentioned
Answer:A
#include &lt;iostream&gt;    using namespace std;    #define SquareOf(x * x    int main&#40;&#41;    &#123;        int x;        cout &lt;&lt; SquareOf&#40;x + 4&#41;;        return 0;    &#125;
A. 16 B. 64 C. compile time error D. none of the mentioned
Explanation:In this program, as we haven’t initiailzed the variable x, we will get a output of ending digit of 4.