Which country joined SAARC in 2007?

Afghanistan

The correct answer is Option (3) - Afghanistan

The South Asian Association for Regional Cooperation (SAARC) is a major regional initiative by the South Asian states to evolve cooperation through multilateral means. It began in 1985. Unfortunately, due to persisting political differences, SAARC has not had much success. SAARC members signed the South Asian Free Trade (SAFTA) agreement which promised the formation of a free trade zone for the whole of South Asia. The 18th SAARC Summit was held in Kathmandu, Nepal. In 2007 Afghanistan joins SAARC