The correct answer is option 2, USSR. The Five Year Plan was first launched in the Soviet Union (now known as Russia) in 1928. The Five Year Plan was a series of economic plans that aimed to rapidly industrialize and develop the country. This plan was created and implemented under the leadership of Joseph Stalin, the General Secretary of the Communist Party of the Soviet Union. The goal of the plan was to transform the Soviet Union from an agrarian society into an industrial powerhouse. The plan set targets for various industries like heavy machinery, mining, and transportation, with an emphasis on increasing production and productivity. It also involved collectivization of agriculture and the establishment of state-controlled enterprises. The success of the Soviet Union`s Five Year Plan model inspired other countries, including China and India, to adopt similar economic planning strategies.