What office was created under CAAP to assist the DG for certification of aircraft and personnel?

The correct choice is the one that refers to the office responsible for assisting the Director General in certifying both aircraft and personnel under the Civil Aviation Authority of the Philippines (CAAP).

The office in question is involved in ensuring that all certification processes meet the safety and regulatory standards required in aviation. Its creation was instrumental in streamlining the certification process for aircraft and related personnel, enhancing the efficiency and effectiveness of aviation operations within the jurisdiction.

The other options, while they may select various aspects of aviation safety and regulation, do not directly pertain to the specific role of assisting with the certification processes as outlined in the mandate of CAAP. Therefore, the focus on certification of both aircraft and personnel underscores the significance of the correct office in maintaining rigorous aviation standards.