以下代码是哪种接口（）的演示案例。
public class Test { public static void main(String[] args) { Resource resource = new ClassPathResource("applicationContext.xml"); XmlBeanFactory beanFactory = new XmlBeanFactory(resource); User user = (User) beanFactory.getBean("user"); System.out.println(user); } }

A.IoC接口
B.AOP接口
C.ApplicationContext接口
D.BeanFactory接口