PLEASE HELP I got this wrong on an exam but got it wrong and i don’t know why!

Which of the following four measurements has the smallest uncertainty percentage?

A 9,99 cm +/- 0,005 cm
B 4,44 cm +/- 0,005 cm
C 1,11 cm +/- 0,005 cm
D 5,55 cm +/- 0,005 cm