Most infants can walk by themselves by the age of _________.

A) 5 to 7 months
B) 8 to 9 months
C) 12 to 15 months
D) 4 to 6 months

Walk

To move at a regular pace by lifting and setting down each foot in turn, never having both feet off the ground at once.

Infants

Young children from birth up to 12 months of age, a period marked by rapid growth and development across physical, cognitive, and socio-emotional domains.