ABC Company has decided to migrate existing J2EE application built using servlets, JSP, JMS, session & entity Beans to Java EE. They have approached you for recommendations. Which of the following are valid recommendations? Select two choices. Choose at least one answer.

JPA entity classes (option A) replace complex entity beans with simpler POJO-based persistence, reducing boilerplate. The JMS API in Java EE 5+ (option B) was significantly simplified with annotations and fewer interfaces, making it worthwhile to adopt. Replacing session beans with web services (C) changes the architecture unnecessarily, and JCA (D) is only needed for legacy system connections - not mentioned.