The correct option is 1 and 2 because the Andaman and Nicobar Islands exhibit a humid, tropical coastal climate, characterized by high humidity and consistent temperatures throughout the year (Statement 1). They receive significant rainfall from both the South-west monsoon, which occurs primarily from June to September, and the North-east monsoon, which contributes additional precipitation from October to December (Statement 2). However, Statement 3 is incorrect as maximum precipitation occurs during the South-west monsoon period, not between December and May. Understanding the climate dynamics and seasonal weather patterns is crucial for analyses in geography and environmental studies, which are essential for the UPSC syllabus.