You updated the resource plan directive for the resource consumer group， DSS_USERS. The resource plan directive is assigned to the DSS_PLAN by using the following statement： SQL>EXEC DBMS_RESOURCE_MANAGER.UPDATE_PLAN_DIRECTIVE （PLAN => ’DSS_PLAN’， GROUP_OR_SUBPLAN => ’DSS_USERS’， NEW_CPU_P1 => 80， NEW_SWITCH_GROUP => ’CANCEL_SQL’， NEW_SWITCH_ESTIMATE => TRUE， NEW_SWITCH_TIME => 600）； A user connects to the database and starts an operation. What is the outcome if Oracle estimates that the execution time for this operation will exceed 600 seconds？（）

A. The session is killed before starting the operation.
B. The session generates an error before starting the operation.
C. The session switches to the CANCEL_SQL resource consumer group before starting the operation.
D. The session hangs before starting the operation.