In which areas may Hong Kong enact its own laws under the Special Administrative Region's authority?

Hong Kong, as a Special Administrative Region (SAR) of China, is granted a high degree of autonomy under the "one country, two systems" principle enshrined in the Basic Law. This autonomy allows Hong Kong to enact and enforce its own laws, particularly in areas not specifically reserved for the central government, such as defense and foreign relations.

The local social and economic matters fall within the purview of Hong Kong’s legislative powers. This includes regulations and laws related to economic activity, social policies, labor rights, housing, and other daily matters that affect the lives of residents. The Basic Law explicitly allows the Hong Kong government to manage affairs such as trade regulations and local financial mechanisms, reflecting the region's unique socio-economic context.

While healthcare, environmental regulations, and educational standards are important areas, they are often considered part of broader local social and economic matters through which the SAR can govern itself effectively without interference from the central authority. Thus, the power to enact laws in precisely these domains aligns with the local governance structure defined in the Basic Law, confirming that the chosen answer accurately reflects the areas in which Hong Kong possesses legislative authority.