#include &lt;iostream&gt;    #include &lt;complex&gt;    using namespace std;    int main&#40;&#41;     &#123;       complex&lt;double&gt; c1&#40;4.0, 16.0&#41;, c2;       c2 = pow&#40;c1, 2.0&#41;;       cout &lt;&lt; c2;       return 0;              &#125;
A. (-240, 128)
B. (240, 128)
C. (240, 120)
D. None of the mentioned
Answer:A
#include &lt;iostream&gt;    #include &lt;complex&gt;    using namespace std;    int main&#40;&#41;     &#123;       complex&lt;double&gt; c1&#40;4.0, 16.0&#41;, c2;       c2 = pow&#40;c1, 2.0&#41;;       cout &lt;&lt; c2;       return 0;              &#125;
A. (-240, 128) B. (240, 128) C. (240, 120) D. None of the mentioned
Explanation:In this program, we are finding the square of the complex number.