Which of the following is the neighboring country that has the least 'per capita income'?
Per-capita income refers to the average income of a country. We calculate it by dividing the total income of the country by its total population. This criterion is used to compare the countries in terms of development.
Accordingly, the countries were classified as rich countries or low-income countries. The neighbouring country with the least per-capita income is Nepal.
Thus, the correct answer is D.