[Solved] Which of the following is true when a module is extended in a Ruby class? — Ans: Module methods become class methods of the class | Ruby

Ruby - Modules and Mixins

Which of the following is true when a module is extended in a Ruby class?

AModule methods become class methods of the class

BModule methods are ignored

CModule methods become instance methods of the class

DModule methods become private methods

Step-by-Step Solution

Solution:

Step 1: Recall effect of extend
Extending a module adds its methods as class methods to the class.
Step 2: Eliminate incorrect options
Instance methods come from include, not extend. Methods are not ignored or made private by default.
Final Answer:
Module methods become class methods of the class -> Option A
Quick Check:
extend adds class methods = C [OK]

Quick Trick: Extend adds module methods as class methods, not instance methods [OK]

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