Which entity can issue provisional authorisations for players representing multiple nationalities?

The correct answer is FIBA, as it holds the authority to issue provisional authorisations for players who hold multiple nationalities. In the context of international basketball, FIBA (the International Basketball Federation) regulates the eligibility of players and oversees various aspects of the game at a global level.

Players representing multiple nationalities often find themselves in complex situations regarding eligibility for different national teams. FIBA's role ensures that there is a clear framework for handling cases of dual or multiple nationality, allowing them to grant provisional authorisations under certain circumstances. This is essential for maintaining the integrity of international competitions, ensuring players can participate according to established rules.

FIBA has specific regulations that address how and when these authorisations can be granted, making it the central authority for such matters. The other entities mentioned, such as national federations, the Secretary General, or independent committees, operate under FIBA's regulations and cannot independently issue provisional authorisations for players with multiple nationalities without FIBA’s involvement.