#include &lt;stdio.h&gt;    union    &#123;        int ival;        float fval;    &#125; u;    void main&#40;&#41;    &#123;        printf&#40;&quot;%d&quot;, sizeof&#40;u&#41;&#41;;    &#125;
A. 16
B. 8
C. 4
D. 32
Answer:A
#include &lt;stdio.h&gt;    union    &#123;        int ival;        float fval;    &#125; u;    void main&#40;&#41;    &#123;        printf&#40;&quot;%d&quot;, sizeof&#40;u&#41;&#41;;    &#125;
A. 16 B. 8 C. 4 D. 32