A few kids were coming from nursery, suddenly a dog ran towards them. All started crying expect one. He climbed a tree and saved himself from the dog. A old shop owner was watching all these and told others that he is the only one born by normal delivery all others by Cesarean(c session). The old shop owner may not be right same time it makes sense.
Same way, kids before birth itself start listening mothers talk and enjoying the movement of the mother. Movement of mother is a music for kid inside