India is recognized as the largest exporter of rice in the world over the last five years. Let`s examine each option separately:

Option 1: China. While China is the largest consumer and producer of rice, it is not the largest exporter, because it consumes most of the rice it produces internally.

Option 2: India. India has been the top exporter of rice, especially basmati, due to its high-quality production and competitive pricing. Their strong international trading relations have helped them achieve this status.

Option 3: Myanmar. While Myanmar was one of the top rice exporters during the early 20th century, current circumstances, including changes in climate and farming practices, have reduced its position in the global market.

Option 4: Vietnam. Vietnam is one of the top rice exporting countries but does not surpass India. It mainly exports jasmine rice, which has a different demand in the international market compared to India`s basmati rice.

Hence, India (option 2) is the correct answer as it is the largest exporter of rice in the past five years.