Correct Answer (Detailed Explanation is Below)
A.
One constructor calls another constructor of the same class
Detailed Explanation
Answer: (A) One constructor calls another constructor of the same class
A delegating constructor allows one constructor of a class to call another constructor of the same class.
This feature helps avoid duplicate initialization code.
Example:
class Test {
int x;
public:
Test() : Test(10) { }
Test(int n) : x(n) { }
};
Here, the no-argument constructor delegates the actual initialization to the constructor taking an integer.
