[Solved] Identify the error in this Ruby code snippet: module Tools def tool_name "Hammer" end end class Worker extend Tools def self.tool_name "Wrench" end end puts Worker.tool_name | Ruby

Ruby - Modules and Mixins

Identify the error in this Ruby code snippet:

module Tools
  def tool_name
    "Hammer"
  end
end

class Worker
  extend Tools

  def self.tool_name
    "Wrench"
  end
end

puts Worker.tool_name

ANo error; output is 'Wrench'

BNoMethodError because tool_name is undefined

CSyntaxError due to extend usage

DOutput is 'Hammer' ignoring class method

Step-by-Step Solution

Solution:

Step 1: Analyze method definitions
The module Tools defines tool_name, which is added as a class method to Worker by extend Tools.
Step 2: Check method override
Worker defines its own class method tool_name, which overrides the module method.
Final Answer:
No error; output is 'Wrench' -> Option A
Quick Check:
Class method override works; output = 'Wrench' [OK]

Quick Trick: Class methods override extended module methods if defined later [OK]

Common Mistakes:

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