Why do we use interfaces in C# programming?

easy🧠 Conceptual Q11 of Q15

C Sharp (C#) - Interfaces

ATo define a contract that classes must follow

BTo store data like variables

CTo create graphical user interfaces

DTo write comments in code

Step-by-Step Solution

Solution:

Step 1: Understand the purpose of interfaces
Interfaces specify methods that a class must implement, acting like a contract.
Step 2: Compare other options
Options B, C, and D describe unrelated concepts: data storage, UI design, and comments.
Final Answer:
To define a contract that classes must follow -> Option A
Quick Check:
Interface purpose = contract [OK]

Quick Trick: Interfaces define required methods, not data or UI [OK]

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