undefined method (NoMethodError) ruby

Question

I keep getting the following error message:

text.rb:2:in `
\': undefined method `choices\' for main:Object (NoMethodError)

But I

Answer 1

def main
puts "Select [1] [2] [3] or [q] to quit"; users_choice = gets.chomp
choices(users_choice)
end

def choices (choice)
  while choice != 'q'
    case choice

      when '1'
        puts "you chose one!"
        break
      when '2'
        puts "you chose two!"
        break
      when '3'
        puts "you chose three!"
        break
    end
  end
end

main

The method only needs to be called prior to being executed. Here I wrap the definition in the main method, but only call main after the definition of choices().