In class we talked about both the Model and ModelAttribute. Explain what both of these are used for. Question 20 (4 points) We talked about Dependency Injection in class. What does this mean? What are the benefits of Dependency Injection? Question 21 (1 point) When binding a form to an object using Thymeleaf, we can only retrieve the data the user enters. I.e. we cannot use form binding to display existing data to the user. True False Question 22 (1 point) Given a bean Student with a method getName() which returns a String, this is how you display the name in a Thymeleaf html page. @[student.name] "(model.student.name) $ sstudent.getName] S\{student.name\}