The correct answer is A. Rs. 1,350.
Charulata withdrew Rs. 10,000 in each quarter during the year ending on 31st March 2019. This means that she withdrew a total of Rs. 10,000 x 4 = Rs. 40,000. The interest on her drawings @ 9% per annum is calculated as follows:
Interest = Principal x Rate x Time
= Rs. 40,000 x 9% x 1/4
= Rs. 1,350
Therefore, the interest on Charulata’s drawings @ 9% per annum is Rs. 1,350.
Option B is incorrect because it is the interest on Rs. 10,000 at 9% per annum for one year. Option C is incorrect because it is the interest on Rs. 10,000 at 9% per annum for one quarter. Option D is incorrect because it is the interest on Rs. 20,000 at 9% per annum for one year.