[Solved] What will this Ruby code print? module Flyable; end class Bird include Flyable end bird = Bird.new puts bird.kind_of?(Flyable) | Ruby

Ruby - Inheritance

What will this Ruby code print?

module Flyable; end
class Bird
  include Flyable
end
bird = Bird.new
puts bird.kind_of?(Flyable)

Afalse

Bnil

Ctrue

DError

Step-by-Step Solution

Solution:

Step 1: Understand module inclusion
Bird includes Flyable, so Bird instances are considered kind_of? Flyable.
Step 2: Evaluate kind_of? call
bird.kind_of?(Flyable) returns true because modules included behave like ancestors.
Final Answer:
true -> Option C
Quick Check:
kind_of? returns true for included modules [OK]

Quick Trick: kind_of? returns true for included modules too [OK]

Common Mistakes:

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