Create 'poll_question_answers' table

db/migrate/20171004025903_create_poll_question_answers.rb

@@ -0,0 +1,9 @@
+class CreatePollQuestionAnswers < ActiveRecord::Migration
+  def change
+    create_table :poll_question_answers do |t|
+      t.string :title
+      t.text :description
+      t.references :poll_question, index: true, foreign_key: true
+    end
+  end
+end