B, D: In addition to the coherence.jar file, Coherence provides a deployable shared library, coherence-web-spi.war, that contains a native plug-in to WebLogic Server's HTTP Session Management interface. Coherence also provides the active-cache-1.0.jar file which contains the classes that allow WebLogic Server to interact with Coherence.
C: The active-cache-1.0.jar is included in the WebLogic Server installation.
Reference: Oracle Coherence Tutorial for Oracle Coherence