What is the correct natural physical development sequence?
Sit up, Lift head, Roll over, Crawl, Creep, Walk, Cruise
Creep, Lift head, Roll over, Crawl, Sit up, Cruise, Walk
Lift head, Roll over, Sit up, Creep, Crawl, Cruise, Walk
Lift head, Roll over, Creep, Sit up, Crawl, Walk, Cruise