Which two statements regarding services are true? (Choose two.)
A.
Before you can collect statistics for services, you need to enable their capture.
B.
You need to use the trcsess utility to extract services-related SQL statements for specific services from trace files.
C.
Statistics related to MODULES set via DBMS_APPLICATION_INFO are automatically aggregated.
D.
Enabling tracing using the SERV_MOD_ACT_TRACE_ENABLE procedure generates trace files containing only information relating to the (SERVICE_NAME, MODULE, ACTION) specified.