#include &lt;stdio.h&gt;    int main&#40;&#41;    &#123;        typedef struct p *q;        struct p        &#123;            int x;            char y;            q ptr;        &#125;;        struct p p = &#123;1, 2, &amp;p&#125;;        printf&#40;&quot;%d\n&quot;, p.ptr-&gt;x&#41;;        return 0;    &#125;
A. Compile time error
B. 1
C. Depends on the compiler
D. Depends on the standard
Answer:A
#include &lt;stdio.h&gt;    int main&#40;&#41;    &#123;        typedef struct p *q;        struct p        &#123;            int x;            char y;            q ptr;        &#125;;        struct p p = &#123;1, 2, &amp;p&#125;;        printf&#40;&quot;%d\n&quot;, p.ptr-&gt;x&#41;;        return 0;    &#125;
A. Compile time error B. 1 C. Depends on the compiler D. Depends on the standard