Correct option is C
Given: A student is positioned tenth from both the left and right ends of the row.
Concept Used: If a student is the same distance from both ends of the row, the total number of students can be calculated as: Total students = Position from the left + Position from the right - 1.
Solution:
1. The student is 10th from both ends, so: Total students = 10 + 10 - 1 = 19.
Thus, there are 19 students in the row.
Final Answer: (c) 19