The Line: Virtual Double Earnings() Const = 0;

question 23

Multiple Choice

The line: virtual double earnings() const = 0;
Appears in a class definition. You cannot deduce that:

• A) All classes that directly inherit from this class will override this method.
• B) This class is an abstract class.
• C) Any concrete class derived from this class will have an earnings function.
• D) This class will probably be used as a base class for other classes.

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Definitions:

Vocalizations

The production of sounds with the voice, as a form of communication among humans or other animals.

Symbols

Objects, figures, or colors used to represent ideas or concepts.

Influence Thoughts

The ability to affect or alter someone's thinking patterns or beliefs through various means, including persuasion, information provision, or example.

Create Perceptions

The process of forming an understanding or interpretation of something through one's senses and cognitive functions.