Rename 'scores' table to 'answers' table, and rename 'score' field to 'answer' field
user
```ruby
class RenameScoresTableToAnswers < ActiveRecord::Migration
  def self.up
  	rename_table :scores, :answers
  	rename_column :answers, :score, :answer
  end

  def self.down
  	rename_column :answers, :answer, :score
  	rename_table :answers, :scores
  end
end
```
assistant