The correct answer to the question is Option 1: Child labour.

The International Labour Organization (ILO) is a specialized agency of the United Nations, which was established in 1919. It is responsible for developing and promoting international labour standards, which include conventions and recommendations. The ILO`s objective is to promote social justice and promote decent working conditions worldwide.

Convention 138 on Minimum Age for Employment and Convention 182 on the Worst Forms of Child Labour are two of the most important conventions related to child labor. These conventions were adopted in 1973 and 1999, respectively, and have been ratified by a large number of countries worldwide.

Convention 138 sets out the minimum age at which children can start working and defines the types of work that are considered hazardous for children. It also requires member states to provide access to education and vocational training for young people.

Convention 182 defines the worst forms of child labor and requires member states to take action to eliminate them. The worst forms of child labor include slavery, trafficking, forced labor, the use of children in armed conflict, and any work that is likely to harm the health, safety, or morals of children.

Both conventions are important because they help protect children from exploitation and ensure that they have access to education and training. By ratifying these conventions, governments commit to taking action to eliminate child labor and provide decent working conditions for all children.

It is worth noting that the ILO has also adopted other conventions related to labor rights, such as Convention 100 on Equal Remuneration and Convention 111 on Discrimination (Employment and Occupation). However, these conventions are not directly related to child labor.