Update answer options and copy key

app/models/form/sales/pages/staircase.rb

@@ -3,6 +3,7 @@ class Form::Sales::Pages::Staircase < ::Form::Page
     super
     @id = "staircasing"
     @depends_on = [{ "ownershipsch" => 1 }]
+    @copy_key = "sales.#{subsection.id}.staircasing"
   end
 
   def questions

app/models/form/sales/questions/staircase.rb

@@ -2,17 +2,25 @@ class Form::Sales::Questions::Staircase < ::Form::Question
   def initialize(id, hsh, page)
     super
     @id = "staircase"
-    @copy_key = form.start_year_2025_or_later? ? "sales.setup.staircasing" : "sales.sale_information.staircasing"
+    @copy_key = "sales.#{subsection.id}.staircasing"
     @type = "radio"
-    @answer_options = form.start_year_2025_or_later? ? ANSWER_OPTIONS.except("3") : ANSWER_OPTIONS
     @question_number = QUESTION_NUMBER_FROM_YEAR[form.start_date.year] || QUESTION_NUMBER_FROM_YEAR[QUESTION_NUMBER_FROM_YEAR.keys.max]
   end
 
-  ANSWER_OPTIONS = {
+  def answer_options
+    if form.start_year_2025_or_later?
+      {
+        "1" => { "value" => "Yes" },
+        "2" => { "value" => "No" },
+      }.freeze
+    else
+      {
         "1" => { "value" => "Yes" },
         "2" => { "value" => "No" },
         "3" => { "value" => "Don’t know" },
       }.freeze
+    end
+  end
 
   QUESTION_NUMBER_FROM_YEAR = { 2023 => 76, 2024 => 78 }.freeze
 end