[Solved] What will be the output of this Ruby code?module Alpha module Beta def self.message 'Greetings from Beta' end end end puts Alpha::Beta.message | Ruby

Ruby - Modules and Mixins

What will be the output of this Ruby code?

module Alpha
  module Beta
    def self.message
      'Greetings from Beta'
    end
  end
end

puts Alpha::Beta.message

AGreetings from Beta

BAlpha::Beta.message

CError: undefined method 'message'

DNo output

Step-by-Step Solution

Solution:

Step 1: Identify module nesting
Module Beta is nested inside module Alpha.
Step 2: Understand method call
message is a class method (self.message) inside Beta, so it can be called as Alpha::Beta.message.
Step 3: Output
Calling puts Alpha::Beta.message prints the returned string 'Greetings from Beta'.
Final Answer:
Greetings from Beta -> Option A
Quick Check:
Nested module method called with :: [OK]

Quick Trick: Call nested module methods with :: and self. [OK]

Common Mistakes:

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