Based on the relationship between literacy rates and per capita GDP, which South Asian nation has the HIGHEST literacy rate among its citizens?

Per capita GDP:

Afghanistan: $1,976
China: $16,842
india: 7,166
japan: $42,067

A.China
B. Afghanistan
C. Japan
D. India

The option with the highest literacy rate among its citizens is not directly determined by the given per capita GDP information. To determine the South Asian nation with the highest literacy rate, we would need specific data on literacy rates for each country. Therefore, based solely on the information provided, it is not possible to determine which South Asian nation has the highest literacy rate.