The correct option is C In 2011, the literacy rate of Tamil Nadu was 90.33%.
Literacy rate is the measure of percentage of population of a particular age group, who can read and write in a particular region. As per the 2011 census, anyone aged 7 years and above, who can read and write with understanding in any language, is treated as literate.
Tamil Nadu's literacy rate in 2011 was 80.33%. Among these, male literacy rate was 86.81% and the female literacy rate 73.86%.