Answer: option C is correct
Step-by-step explanation:
Newborns are especially sensitive to their mother's voice and their native language because of the option(c) that is; newborns are repeatedly exposed to their mother speaking during pregnancy.
Newborn babies has been hearing sounds since their womb days. They have been hearing their Mother's heartbeat and other sounds, family members voices and so on. Mother's voice is part of the baby's world before birth.
When babies are born, the sounds of the outside world come in loud and clear to them, they already know that this is the voice; the mother's voice. Babies do listens when the mother is talking or singing in loving tones.