Assigning an object of a derived class to a variable of a base class is called:

What is stored inside the variable value after the following line of code is executed?

``` var value = navigator.appVersion; ``` a) It stores the type of browser that the user is using. b) It stores an integer representing the version of the browser. c) It stores a string representing the version of the browser and other information. d) The navigator object does not contain an attribute named appVersion.

List the four categories into which classes fall.

What will be an ideal response?