Aran's Mother Has Been Helping Him to Walk by Holding

Multiple Choice

Aran's mother has been helping him to walk by holding his hands and supporting him. Aran's legs are strong enough to hold him up, and he's able to move his legs in a coordinated way as long as his mother supports him. What else does Aran need in order to walk on his own?

A) muscle strength
B) brain maturation
C) practice
D) fine motor skills