#include &lt;stdio.h&gt;    int main&#40;&#41;    &#123;        int x = 3, i = 0;        do &#123;            x = x++;            i++;        &#125; while &#40;i != 3&#41;;        printf&#40;&quot;%d\n&quot;, x&#41;;    &#125;
A. Undefined behaviour
B. Output will be 3
C. Output will be 6
D. Output will be 5
Answer:A
#include &lt;stdio.h&gt;    int main&#40;&#41;    &#123;        int x = 3, i = 0;        do &#123;            x = x++;            i++;        &#125; while &#40;i != 3&#41;;        printf&#40;&quot;%d\n&quot;, x&#41;;    &#125;
A. Undefined behaviour B. Output will be 3 C. Output will be 6 D. Output will be 5