Which of the following measurements best estimates the length of a hard boiled egg?

Measurements for the length of a hard-boiled egg:
33 km → Too large!
80 m → Too large!
50 mm = 5 cm → Reasonable
1100 dm = 110 m → Too large!
0.012 cm → Too small!
The measurement that best estimates the length of a hard-boiled egg is 50 mm