A RequestDispatcher can be obtained from which two objects？ （）

A. the web application deployment descriptor
B. the /META-INF/dependencies.xml file
C. the /META-INF/MANIFEST.MF manifest file
D. the /META-INF/MANIFEST.MF manifest of a JAR in the web application classpath

A.A
B.B
C.C
D.D
E.E

A. session configuration
B. MIME type mappings
C. context root for the application
D. servlet instance pool configuration
E. web container default port bindings
F. ServletContext initialization parameters