#include &lt;stdio.h&gt;    int i;    int main&#40;&#41;    &#123;        extern int i;        if &#40;i == 0&#41;            printf&#40;&quot;scope rules\n&quot;&#41;;    &#125;
A. scope rules
B. Compile time error due to multiple declaration
C. Compile time error due to not defining type in statement extern i
D. Nothing as i value is not zero being automatic variable
Answer:A
#include &lt;stdio.h&gt;    int i;    int main&#40;&#41;    &#123;        extern int i;        if &#40;i == 0&#41;            printf&#40;&quot;scope rules\n&quot;&#41;;    &#125;
A. scope rules B. Compile time error due to multiple declaration C. Compile time error due to not defining type in statement extern i D. Nothing as i value is not zero being automatic variable