Correct answer: B
Explanation
India has consistently been the world's largest exporter of rice since 2012. For the five-year period preceding 2019 (the year of the examination), India maintained its top position globally, followed by countries like Thailand and Vietnam. In 2018, India's rice exports were valued at approximately US$7.4 billion, representing about 30% of the total global rice exports. While China is the world's largest producer of rice, it is also a significant consumer and importer, whereas India dominates the global export market.