Correct option is B
Given:
Total number of boys admitted from J and M in 2017 was 10 and 8
Solution:
Total number of boys admitted from J and M in 2017 = 10 + 8 = 18
In 2021, the number of girls from M =18, matching the boys' total from J and M in 2017.
Thus, the answer is 2021.




