In a row of 21 girls, when M was shifted by four places towards right she became 12th from the left end. What was her earlier position from the right end?

In a row of 21 girls, when M was shifted by four places towards right

1.	In a row of 21 girls, when M was shifted by four places towards right she became 12th from the left end. What was her earlier position from the right end?
A.	10th
B.	9th
C.	14th
D.	11th
Answer» D. 11th