Correct Answer: PHP supports single level inheritance Inheriting a class would mean creating a new class with all functionality of the existing class in addition to some more The created class is called as a subclass of the parent class Parent is a keyword which we use to access members of a parent class Inheritance is usually defined by using the keyword “Extend” $this is used a reference to the calling object Inheritance avoids redundancy of code Example: Class employee extends manager : Here Employee is a subclass of manager Echo $this->name can be used to echo variable name of the parent class