Which two statements are true about @Controller annotated classes? (Choose two.)

The @Controller annotation is a specialization of the @Component annotation, making it a stereotype. This means that any class annotated with @Controller is eligible for component scanning and will be registered as a bean in the application context. Its primary role in Spring MVC is to mark a class as a web controller, making its methods eligible to handle incoming web requests when mapped with annotations like @RequestMapping.

A. @Controller classes can return data directly (e.g., JSON) by using the @ResponseBody annotation on a method, not just render views.
C. @EnableMvcMappings is not a standard Spring annotation. Component scanning, enabled by @ComponentScan or @SpringBootApplication, discovers @Controller beans.
D. @RestController is a composite annotation that includes @Controller and @ResponseBody. They are not interchangeable without code changes, as methods in a @Controller do not implicitly have @ResponseBody behavior.

1. Spring Framework Documentation, 6.1.6. "Web on Servlet Stack", Section 22.3.1. "Defining a Controller with @Controller". States that @Controller indicates that a class serves the role of a controller and is a stereotype for component scanning.

2. Javadoc for org.springframework.stereotype.Controller. The annotation's source code shows it is meta-annotated with @Component.

3. Spring Framework Documentation, 6.1.6. "Web on Servlet Stack", Section 22.3.4. "@RestController". Explains that @RestController is a convenience annotation that combines @Controller and @ResponseBody.