Correct Answer: (b) 1993
Solution:The SAARC Agreement for Preferential Trading Arrangement (SAPTA) was signed on 11th April, 1993, at the Seventh SAARC Summit held in Dhaka. Further, the South Asian Free Trade Area (SAFTA) agreement reached on January 6, 2004, at the 12th SAARC summit in Islamabad, Pakistan, which created a free-trade area of 1.6 billion people in Afghanistan, Bangladesh, Bhutan, India, the Maldives, Nepal, Pakistan and Sri Lanka to reduce customs duties of all traded goods to zero by the year 2016. The SAFTA agreement came into force on January 1, 2006.