What is the output of the program?

exams CPA-21-02 CPA-21-02 exam 0 Comments

What is the output of the program?

#include <iostream>

#include <string>

using namespace std;

int main()

{

string s1="Wo";

string s2;

s2 = s1;

string s3;

s3 = s2.append("rldHello");

cout << s3;

return( 0 );

}
A . It prints: WorldHello
B.It prints: HelloWo
C.It prints: World
D.It prints: Hello