#include &lt;stdio.h&gt;    #define A 1 + 2    #define B 3 + 4    int main&#40;&#41;    &#123;        int var = A * B;        printf&#40;&quot;%d\n&quot;, var&#41;;    &#125;
A. 9
B. 11
C. 12
D. 21
Answer:A
#include &lt;stdio.h&gt;    #define A 1 + 2    #define B 3 + 4    int main&#40;&#41;    &#123;        int var = A * B;        printf&#40;&quot;%d\n&quot;, var&#41;;    &#125;
A. 9 B. 11 C. 12 D. 21