#include &lt;iostream&gt;    using namespace std;    int main&#40;&#41;    &#123;        typedef int num;        num a = 10, b = 15;        num c = a + b + a - b;        cout &lt;&lt; c;        return 0;    &#125;
A. 20
B. 15
C. 30
D. 25
Answer:A
#include &lt;iostream&gt;    using namespace std;    int main&#40;&#41;    &#123;        typedef int num;        num a = 10, b = 15;        num c = a + b + a - b;        cout &lt;&lt; c;        return 0;    &#125;
A. 20 B. 15 C. 30 D. 25