The executive authorities and legislature of the Hong Kong Special Administrative Region shall be composed of _________ in accordance with the relevant provisions of this Law.

The correct answer indicates that the executive authorities and legislature of the Hong Kong Special Administrative Region (HKSAR) are to be composed of executive authorities and permanent residents of Hong Kong. This aligns with the principle of "one country, two systems," which emphasizes the autonomy of the HKSAR while ensuring that key positions of governance are held by individuals who have a vested interest in the region, namely its permanent residents.

Permanent residents of Hong Kong are individuals who have established their legal status to reside in the territory indefinitely. This composition is essential to ensure that those governing the region are familiar with its unique social, cultural, and economic landscape. It reflects the intent of the Basic Law to empower local governance while retaining the acknowledgment of the sovereignty of the People’s Republic of China.

In contrast, the other options include entities or individuals that would not typically meet the criteria set out by the Basic Law. Therefore, the correct answer highlights the requirement for local governance to be conducted by those who are integral members of the Hong Kong community, reinforcing both local participation and adherence to the Basic Law's directives.