[CO-OM-CCA] Data from internal and external accounting should be reconcilable. Which is (are) correct?

A. The CO totals in the reconciliation ledger are not updated for the external postings.

B. External postings to FI with a cost accounting effect are transferred automatically to the appropriate Co application component.

C. If amounts are allocated within CO across company codes, functional areas or business areas, the information do not need to pass back to FI, the R/3 system sends this data automatically to the FI component.

D.    It is not possible to use the reconciliation ledger to generate a posting that brings FI into agreement with the CO postings.