Select the code below that configures a background image to repeat horizontally across a web page.

If an app needs to perform a derived-class-specific operation on a derived class object reference by a base class variable, the app must first cast the base class reference to a derived class reference through a technique known as _________.

a) downcasting b) upcasting c) decreasecasting d) increasecasting

Every object in C# knows its own class and can access this information through method .

a) GetType() b) GetInformation() c) ObjectClass() d) ObjectInformation()