The terms "amber box," "blue box," and "green box" are usually associated with World Trade Organization (WTO) affairs. Therefore, the correct answer to this question is Option 1: WTO affairs.

The WTO is a global international organization that deals with the rules of trade between nations. Its main objective is to ensure fair and free trade across the world. The WTO has three main agreements: the General Agreement on Tariffs and Trade (GATT), the General Agreement on Trade in Services (GATS), and the Agreement on Trade-Related Aspects of Intellectual Property Rights (TRIPS).

The terms "amber box," "blue box," and "green box" are used to categorize agricultural subsidies that are provided by member countries. These subsidies can have a significant impact on trade and competition between countries.

The "amber box" subsidies are those that are considered to be trade-distorting and have a negative impact on other countries` trade. These subsidies are subject to reduction commitments by WTO members.

The "blue box" subsidies are less trade-distorting than amber box subsidies and are subject to less stringent reduction commitments. These subsidies include measures such as direct payments to farmers that are linked to production.

The "green box" subsidies are considered to be non-trade-distorting and do not have to be reduced under WTO agreements. These subsidies are aimed at providing support for programs such as research, rural development, and environmental protection.

In recent years, there has been a lot of discussion and debate among WTO members about the impact of agricultural subsidies on trade and development. The classification of subsidies into the amber, blue, and green boxes has been a major topic of discussion in WTO negotiations.

In conclusion, the terms "amber box," "blue box," and "green box" are primarily associated with WTO affairs and are used to categorize agricultural subsidies provided by member countries.