The correct answer is: C) Higher than the national average.
Karnataka has a life expectancy at birth of 75.5 years, which is higher than the national average of 70.3 years. This is due to a number of factors, including a relatively high level of education and healthcare in the state.
Option A is incorrect because Karnataka’s life expectancy at birth is higher than the national average.
Option B is incorrect because Karnataka’s life expectancy at birth is not approximately equal to the national average.
Option D is incorrect because Karnataka’s life expectancy at birth is not the highest in India. The state with the highest life expectancy at birth is Kerala, with a life expectancy of 77.1 years.