According to 2010 records, HDI rank of Sri Lanka is ___ among 187 countries.
HDI refers to Human Development Index. It is an important component in Human Development Report. The prefix “Human” added to the word Development depicts that it is the health and well-being of the people which is important in the development. As per 2010 records, HDI ranks have been depicted among 187 countries. According to the data, HDI rank of Sri Lanka is 91 among 187 countries.
Thus the correct answer is C.