What needs to be called in the constructor of Student to instantiate the parent class Person?

The correct option involves using the super keyword, which is essential in object-oriented programming, particularly in JavaScript when dealing with classes that have a parent-child relationship. In this context, when a class (such as Student) extends another class (like Person), the constructor of the child class must call the constructor of the parent class to properly initialize the inherited properties.

By using super(fName, lName, age), the constructor of Student effectively passes the required parameters to the constructor of Person. This ensures that all properties defined in the Person class are correctly set up for the Student instance. It's important to note that if this call to the parent class constructor is not made, the properties of Person will not be initialized, potentially leading to unexpected behavior or errors.

The other options do not correctly invoke the parent class constructor. The use of this.parent in the second option would indicate an attempt to call a method or constructor not properly defined, as the super keyword is specifically designed for this purpose in a class hierarchy. Additionally, the third option, parent(fName, lName), fails to utilize the necessary super keyword and thereby won't access the parent constructor at all. Lastly, the concept of call as presented in the fourth option does not apply in this context of