[Solved] What is the output of this Ruby code? module Greetings def greet "Hi!" end end class Person include Greetings end p = Person.new puts p.greet | Ruby

Ruby - Modules and Mixins

What is the output of this Ruby code?

module Greetings
  def greet
    "Hi!"
  end
end

class Person
  include Greetings
end

p = Person.new
puts p.greet

Anil

BError: undefined method greet

CHi!

DGreetings

Step-by-Step Solution

Solution:

Step 1: Understand module inclusion
The Greetings module defines greet method. Including it in Person adds greet as an instance method.
Step 2: Call the method on instance
Creating p as Person.new and calling p.greet returns "Hi!".
Final Answer:
Hi! -> Option C
Quick Check:
Include module = instance method available [OK]

Quick Trick: Included module methods become instance methods [OK]

Common Mistakes:

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