An Infant Is Born with One Lower Limb Deficiency

An infant is born with one lower limb deficiency.When is the optimum time for the child to be fitted with a functional prosthetic device?

A) As soon as possible after birth
B) When the infant is developmentally ready to stand up
C) At about ages 12 to 15 months, when most children are walking
D) At about 4 years, when the healthy limb is not growing so rapidly