According to the inheritance structure defined by the code fragment below, an Airplane is a kind of Jet_Plane.
class Jet_Plane : public Airplane {
private:
int num_engines;
Jet_Engine jets[4];
// ...
};

Question

Quizplus · Accepted Answer

The code fragment actually defines a Jet_Plane as a specialized form of an Airplane, meaning an Airplane is a more general concept, and a Jet_Plane is a specific type of Airplane, not the other way around.

According to the Inheritance Structure Defined by the Code Fragment