Care Standards Act 2000? - Order options as follows, add missing hint text for third option

app/models/scheme.rb

@@ -17,10 +17,10 @@ class Scheme < ApplicationRecord
   enum sensitive: SENSITIVE, _suffix: true
 
   REGISTERED_UNDER_CARE_ACT = {
-    "No": 1,
     "Yes – registered care home providing nursing care": 4,
     "Yes – registered care home providing personal care": 3,
     "Yes – part registered as a care home": 2,
+    "No": 1,
   }.freeze
 
   enum registered_under_care_act: REGISTERED_UNDER_CARE_ACT
@@ -153,4 +153,10 @@ class Scheme < ApplicationRecord
       { name: "Intended length of stay", value: intended_stay },
     ]
   end
+
+  def care_acts_options_with_hints
+    hints = { "Yes – part registered as a care home": "A proportion of units are registered as being a care home." }
+
+    Scheme.registered_under_care_acts.keys.map { |key, _| OpenStruct.new(id: key, name: key.to_s.humanize, description: hints[key.to_sym]) }
+  end
 end

app/views/schemes/new.html.erb

@@ -44,11 +44,13 @@
         :name,
         legend: { text: "What is this type of scheme?", size: "m" } %>
 
-      <% care_acts_selection = Scheme.registered_under_care_acts.keys.reverse.map { |key, _| OpenStruct.new(id: key, name: key.to_s.humanize) } %>
+      <% care_acts_selection = @scheme.care_acts_options_with_hints %>
+
       <%= f.govuk_collection_radio_buttons :registered_under_care_act,
         care_acts_selection,
         :id,
         :name,
+                                           :description,
         legend: { text: "Is this scheme registered under the Care Standards Act 2000?", size: "m" } %>
 
       <% if current_user.support? %>