[Solved] Given this Ruby code, what is the output?module M1 def greet; "Hello from M1"; end end class C include M1 def greet; "Hello from C"; end end obj = C.new puts obj.greet | Ruby

Ruby - Inheritance

Given this Ruby code, what is the output?

module M1
  def greet; "Hello from M1"; end
end

class C
  include M1
  def greet; "Hello from C"; end
end

obj = C.new
puts obj.greet

AHello from C

BHello from M1

CNoMethodError

DHello from Object

Step-by-Step Solution

Solution:

Step 1: Understand method lookup order with include and override
Class C includes module M1, but also defines its own greet method, which overrides the module's method.
Step 2: Determine which greet method is called
Ruby looks first in C, finds greet there, so it calls "Hello from C".
Final Answer:
Hello from C -> Option A
Quick Check:
Method override in class wins over included module [OK]

Quick Trick: Class methods override included module methods [OK]

Common Mistakes:

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