The correct answer is: B. 11.53%
The growth rate of Bihar economy at constant prices in the year 2018-19 was 11.53%. This means that the economy of Bihar grew by 11.53% in real terms (i.e., after adjusting for inflation) in the year 2018-19. This is a significant increase from the growth rate of 7.53% in the previous year. The increase in growth rate is due to a number of factors, including the implementation of various government schemes, improvement in infrastructure, and increase in investment.
Option A: 13.53% is incorrect because the actual growth rate was 11.53%.
Option B: 11.53% is the correct answer.
Option C: 12.53% is incorrect because the actual growth rate was 11.53%.
Option D: 10.53% is incorrect because the actual growth rate was 11.53%.
Option E: None of the above is correct because the actual growth rate was 11.53%.