#include &lt;iostream&gt;    using namespace std;    int main&#40;&#41;    &#123;        int a = 9;        int &amp; aref = a;        a++;        cout &lt;&lt; &quot;The value of a is &quot; &lt;&lt; aref;        return 0;    &#125;
A. 9
B. 10
C. error
D. 11
Answer:A
#include &lt;iostream&gt;    using namespace std;    int main&#40;&#41;    &#123;        int a = 9;        int &amp; aref = a;        a++;        cout &lt;&lt; &quot;The value of a is &quot; &lt;&lt; aref;        return 0;    &#125;
A. 9 B. 10 C. error D. 11