#include &lt;stdio.h&gt;    struct p    &#123;        int x;        char y;    &#125;;    int main&#40;&#41;    &#123;        struct p p1&#91;&#93; = &#123;1, 92, 3, 94, 5, 96&#125;;        struct p *ptr1 = p1;        int x = &#40;sizeof&#40;p1&#41; / 3&#41;;        if &#40;x == sizeof&#40;int&#41; + sizeof&#40;char&#41;&#41;            printf&#40;&quot;%d\n&quot;, ptr1-&gt;x&#41;;        else            printf&#40;&quot;falsen&quot;&#41;;    &#125;
A. Compile time error
B. 1
C. Undefined behaviour
D. false
Answer:A
#include &lt;stdio.h&gt;    struct p    &#123;        int x;        char y;    &#125;;    int main&#40;&#41;    &#123;        struct p p1&#91;&#93; = &#123;1, 92, 3, 94, 5, 96&#125;;        struct p *ptr1 = p1;        int x = &#40;sizeof&#40;p1&#41; / 3&#41;;        if &#40;x == sizeof&#40;int&#41; + sizeof&#40;char&#41;&#41;            printf&#40;&quot;%d\n&quot;, ptr1-&gt;x&#41;;        else            printf&#40;&quot;falsen&quot;&#41;;    &#125;
A. Compile time error B. 1 C. Undefined behaviour D. false