Which of the following statement is true regarding the order of execution of constructors in an inheritance hierarchy?

In an inheritance hierarchy in object-oriented programming, constructors are executed from the top of the hierarchy (the base class) down (towards the derived classes). This means that the constructor of the base class is executed first, followed by the constructors of the derived classes in the order of inheritance. This is because the derived class is dependent on the base class, and so the base class needs to be fully constructed before the derived class can be. Therefore, the statement that is true regarding the order of execution of constructors in an inheritance hierarchy is: "The constructor of the base class is executed before the constructor of the derived class."