A number becomes a perfect square when we subtract 1 from it. Which of the given options cannot be the last digit of that number?
A. 2
B. 4
C. 5
D. 0
A number becomes a perfect square when we subtract 1 from it. Which of the given options cannot be the last digit of that number?
A. 2
B. 4
C. 5
D. 0