The correct option is A Uniting Workers for Social and Economic Advancement
The International Labour Day, also known as International Workers Day or May Day, observed every year on May 1 to promote and encourage the international labour associations. The day marks the victory of workers movement for 8 hours of work. It also aims to pay tribute to workers sacrifices in achieving economic and social rights all over the world. In India, Labour Day is referred to as Antarrashtriya Shramik Diwas or Kamgar Din. The first Labour day or May Day was celebrated in the year 1923 in Chennai. The 2018 theme was "Uniting Workers for Social and Economic Advancement".