What is the primary function of the NCASC?

The primary function of the NCASC, which stands for the National Civil Aviation Security Committee, is to advise the government on aviation security matters. This committee plays a critical role in the development and implementation of security policies and regulations designed to protect the aviation sector. Its expertise helps ensure that the security frameworks in place are effective in addressing various threats to civil aviation.

The other options represent functions that are not aligned with the primary objectives of the NCASC. For instance, managing airline ticket sales pertains to commercial operations rather than security, conducting airport inspections is typically handled by regulatory authorities but is not the main advisory role of the NCASC, and providing travel recommendations falls outside the committee's focus on security governance. Thus, the correct answer highlights the NCASC's role in advising and shaping aviation security policy.