Text states: "11. An abstract class is marked with the abstract keyword, which means it can not be instantiated (i.e. you can't create an object from the class). Abstracts are used to share behavior across classes when the base class should not be extended."
Abstract classes must be extended for child classes to inherit properties/methods.
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Text states: "11. An abstract class is marked with the abstract keyword, which means it can not be instantiated (i.e. you can't create an object from the class). Abstracts are used to share behavior across classes when the base class should not be extended."
Abstract classes must be extended for child classes to inherit properties/methods.
Suggested change: Remove second sentence