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When a class B can extend another class A, we say that?

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When a class B can extend another class A, we say that?

(a) A is the superclass and B is the subclass

(b) B is the superclass and A is the subclass

(c) Both A and B are the superclass

(d) Both A and B are the subclass

The question was asked in an internship interview.

I'd like to ask this question from Classes in JavaScript in chapter Classes and Modules in JavaScript of JavaScript

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The correct answer is (a) A is the superclass and B is the subclass

For explanation: Superclass is the class from which subclasses are defined. Subclasses are also called extensions of superclass.therefore in the above scenario A will be superclass and B will be subclass.

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