#include &lt;iostream&gt;    using namespace std;    int main&#40;&#41;     &#123;        int x = 9;        int* p = &amp;x;        cout &lt;&lt; sizeof&#40;p&#41;;        return 0;    &#125;
A. 4
B. 2
C. Depends on compiler
D. none of the mentioned
Answer:A
#include &lt;iostream&gt;    using namespace std;    int main&#40;&#41;     &#123;        int x = 9;        int* p = &amp;x;        cout &lt;&lt; sizeof&#40;p&#41;;        return 0;    &#125;
A. 4 B. 2 C. Depends on compiler D. none of the mentioned
Explanation:The size of a datatype mainly depends on complier only.