What is true when implementing human reactions that are part of composite applications using the human task component in

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What is true when implementing human reactions that are part of composite applications using the human task component in SOA 11g? (Choose 3)

A. The human task configuration is stored in the "task" metadata file.
B. The human task service uses an identity directory, such as LDAP, to determine people rules and privileges.
C. The human task service engine executes all the human task components in SOA composite application.
D. The human task is not available in standalone mode is always associated with BPEL process service component. E. The wordlist application can also be used to change the human task configuration.