a) Class, parameters, object’s extensible flag
b) Prototype, class, objects’ parameters
c) Prototype, class, object’s extensible flag
d) Native object, Classes and Interfaces and Object’s extensible flag

Answer: c
Explanation: Every object has three associated object attributes:
An object’s prototype is a reference to another object from which properties are inherited.
An object’s class is a string that categorizes the type of an object.
An object’s extensible flag specifies whether new properties may be added to the object.