Which one among the following languages has largest number of speakers in the world?

Bengali is the correct answer because it has the highest number of native and total speakers among the four options provided. According to data from linguistic databases like Ethnologue, Bengali consistently ranks among the top seven most spoken languages globally, with over 270 million speakers primarily in Bangladesh and India. In comparison, Portuguese has around 260 million speakers, French has approximately 230 million total speakers including second-language users, and Japanese has about 125 million speakers. Therefore, Bengali stands as the most widely spoken language on this list.