Which code, inserted at line 10, generates the output "Hello World"?#include <iostream>#include <string>using namespace

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Which code, inserted at line 10, generates the output "Hello World"?#include <iostream>#include <string>using namespace std;string fun(string, string);int main(){string s="Hello";string *ps;ps = &s;//insert code herereturn 0;}string fun(string s1, string s2){return s1+s2;}

A. cout << fun(" World");
B. cout << fun(*ps);
C. cout << fun("Hello");
D. cout << fun("Hello", " World");