Why no work?

gistfile1.rb

  
options = {"lastpatient"=>":ID"}


for option in options
		#this works
    puts selected[:ID]
    #this does not work
		puts selected['#{option}']
    #and this does not work
    puts selected[:option]
end

options = {"lastpatient" => "ID"}

options.each do |key, value|
  puts key
  puts value
end