#include &lt;stdio.h&gt;    #include &lt;math.h&gt;    void main&#40;&#41;    &#123;        int k = sqrt&#40;-4&#41;;        printf&#40;&quot;%d\n&quot;, k&#41;;    &#125;
A. -2
B. 2
C. Compile time error
D. NaN
Answer:A
#include &lt;stdio.h&gt;    #include &lt;math.h&gt;    void main&#40;&#41;    &#123;        int k = sqrt&#40;-4&#41;;        printf&#40;&quot;%d\n&quot;, k&#41;;    &#125;
A. -2 B. 2 C. Compile time error D. NaN