Which of the following is not a member of the CAAP board?

The correct answer is based on the specific composition of the Civil Aviation Authority of the Philippines (CAAP) Board. The CAAP board is comprised of key government officials who play a significant role in guiding the country's aviation policies and administration. In this context, the Secretary of Justice, Secretary of Labor, and Secretary of Foreign Affairs are essential members of the CAAP board as their respective departments engage with various aspects of civil aviation, including legal matters, labor regulations relevant to the aviation sector, and international affairs concerning aviation agreements and relations.

In contrast, the Secretary of Tourism, while vital to the broader context of promoting travel and tourism, is not a designated member of the CAAP board. The focus of the board is more aligned with regulatory and administrative aspects of civil aviation rather than tourism directly. This understanding clarifies the rationale behind identifying the Secretary of Tourism as not being part of the CAAP board.