[Solved] You have an abstract class with an abstract method and a concrete method.... How should you implement this in C#? | C Sharp (C#)

C Sharp (C#) - Polymorphism and Abstract Classes

You have an abstract class with an abstract method and a concrete method. You want to extend it with a subclass that overrides the abstract method and also calls the base concrete method. How should you implement this in C#?

AOverride the abstract method and inside it call base.ConcreteMethod()

BOverride the concrete method and call base.AbstractMethod()

CCannot call base methods from subclass

DMake all methods abstract to avoid calling base

Step-by-Step Solution

Solution:

Step 1: Understand abstract and concrete methods in base class
Abstract methods must be overridden. Concrete methods can be called from subclass using base keyword.
Step 2: Implement subclass method
Override abstract method and inside it call base.ConcreteMethod() to reuse base functionality.
Final Answer:
Override the abstract method and inside it call base.ConcreteMethod() -> Option A
Quick Check:
Use base keyword to call concrete base methods [OK]

Quick Trick: Use base.Method() to call concrete base methods in override [OK]

Common Mistakes:

MISTAKES

Trying to call abstract methods with base
Overriding concrete methods unnecessarily
Making all methods abstract to avoid base calls

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How should you implement this in C#?

Step 1: Understand abstract and concrete methods in base class

Step 2: Implement subclass method

Final Answer:

Quick Check:

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