Which of the following statements is incorrect about the form components?

Rich Text Area: compared with Text Area, this controller enables you to customize text formats and add links.

Single Select: different from Dropdown, this controller can be used to configure models or services as a data source.

Switch Button: Simple data field that only has three values.

Place Holder: occupies a controller position in a form, and is used when line feed is required but only a single line controller is available.