```ruby
class CreateResponses < ActiveRecord::Migration
  def change
    create_table :responses do |t|
      t.integer :option_id, null: false, index: true
      t.integer :surveys_user_id, null: false, index: true

      t.timestamps null: false
    end
  end
end
```

Edit response migration to include question_id
user
```ruby
class CreateResponses < ActiveRecord::Migration
  def change
    create_table :responses do |t|
      t.integer :option_id, null: false, index: true
      t.integer :question_id, null: false, index: true
      t.integer :surveys_user_id, null: false, index: true

      t.timestamps null: false
    end
  end
end
```
assistant