How can you fix this code to allow calling Greetings.say_hello?

hard📝 Application Q9 of 15

Ruby - Modules and Mixins

How can you fix this code to allow calling Greetings.say_hello?

module Greetings
  def say_hello
    "Hello!"
  end
end

AAdd self. prefix to method: def self.say_hello

BInclude module in a class before calling

CChange module to class

DCall method with instance of module

Step-by-Step Solution

Solution:

Step 1: Understand method type
The method say_hello is an instance method, so it cannot be called on the module directly.
Step 2: Make method a module method
Adding self. prefix makes it callable on the module itself.
Final Answer:
Add self. prefix to method: def self.say_hello -> Option A
Quick Check:
Module methods need self. prefix for direct calls [OK]

Quick Trick: Prefix method with self. to call it on module directly [OK]

Common Mistakes:

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