Erika is a 4-month-old infant whose mother uses a high-pitched voice,simple words or phrases,and lots of repetition when she speaks.Erika delights in her mother's use of:

A) a dual-language approach.
B) sign language.
C) child-directed speech.
D) babbling.

Child-Directed Speech

A simplified and exaggerated form of language used by adults when communicating with young children, characterized by a higher pitch and slower tempo.

High-Pitched Voice

A vocal tone characterized by higher frequencies, typically associated with smaller vocal cords or heightened emotions.

Simple Words

Utilization of words that are easy to understand or communicate, typically used to ensure clarity or inclusiveness in communication.