[Solved] Identify the error in this Ruby code: module M def greet "Hello" end end class C include M def greet "Hi" end end puts C.greet | Ruby

Ruby - Modules and Mixins

Identify the error in this Ruby code:

module M
  def greet
    "Hello"
  end
end

class C
  include M
  def greet
    "Hi"
  end
end

puts C.greet

ACalling greet on class instead of instance causes error

BModule M is not included properly

CMethod greet is missing in module

DSyntax error in class definition

Step-by-Step Solution

Solution:

Step 1: Check method call
The code calls C.greet, but greet is an instance method, not a class method.
Step 2: Understand instance vs class methods
Since greet is defined as instance method, calling it on the class causes a NoMethodError.
Final Answer:
Calling greet on class instead of instance causes error -> Option A
Quick Check:
Instance method called on class = error [OK]

Quick Trick: Call instance methods on objects, not classes [OK]

Common Mistakes:

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