add_options

# File actionpack/lib/action_view/helpers/form_options_helper.rb, line 427
        def add_options(option_tags, options, value = nil)
          if options[:include_blank]
            option_tags = "<option value=\"\">#{options[:include_blank] if options[:include_blank].kind_of?(String)}</option>\n" + option_tags
          end
          if value.blank? && options[:prompt]
            ("<option value=\"\">#{options[:prompt].kind_of?(String) ? options[:prompt] : 'Please select'}</option>\n") + option_tags
          else
            option_tags
          end
        end