The correct answer is: C) 85%.
The literacy rate in Karnataka is 85%, which is higher than the national average of 74%. This means that 85% of the population of Karnataka aged 7 and above can read and write. The literacy rate has been increasing in Karnataka over the past few decades, and this is due to a number of factors, including the government’s focus on education, the increasing availability of education facilities, and the growing awareness of the importance of education.
Option A is incorrect because the literacy rate in Karnataka is not 65%. Option B is incorrect because the literacy rate in Karnataka is not 75%. Option D is incorrect because the literacy rate in Karnataka is not 90%.