Consider the following agreemnts:I. ISLFTA (India-Sri Lanka Free Trade Agreement. II. SAFTA (South Asian Free Trade Area) III. CECA (Comprehensive Economic Cooperation Agreement between India and Singapore ) IV. SAPTA (South Asian Preferential Trade Agreement) Which one of the following is the correct chronilogica order of the above agreement

• A. I-III-II-IV
• B. IV--I-II-III
• C. II-I-IV-III
• D. I-II-III-IV