Select all incorrect statements regarding the Ruby Version Manager (RVM):

Which is not a built-in Rails caching strategy used to reduce database calls?

In a Rails application, the developmental and production configuration are stored in the:

What is the convention for methods which end with a question mark? e.g. #all?, #kind_of?, directory?

Which is correctly handles the currency field? A) add_column :items, :price, :decimal, :precision => 8, :scale => 2 B) add_money :items, :price, currency: { present: false }

How can a partial called 'cart' be rendered from a controller called 'ProductsController', assuming the partial is in a directory called 'shared'?

Where to add business logic? a) Model b) Controller c) View

Where declare validations to a application?

If @user is not null, the expression <%= @user.present? ? 'Yes' : 'No' %> return:

what does method ActiveSupport::Inflector.constantize do?

What is the difference between Post.find(3) and Post.find_by_id(3) ?