D is the mode in witch only or mostly text is visible.<span />
A class can be defined<span> using another class as a foundation. In object-oriented programming terminology, one class can </span>inherit<span> fi elds and methods from another. An object that inherits from another is called a subclass, and the object it inherits from is called a superclass. A subclass extends the superclass.</span>
We don’t know ms.Fredrick, you’re on your own here