Four carpal bones are present at what age?

Four carpal bones are present at what age?
a) 3 years
b) 4 years
c) 5 years
d) 6 years
Correct Answer - B
4 years REF: Parikh 6’ edition page 2.9
Between 2 to 6 years, the number of carpal bones present on X ray
represents the approximate age in years, as for example, four carpal
bones — 4 years.