Research has found that child-directed speech is:

A) a feminine,rather than a masculine,approach to language acquisition.
B) spoken in a high pitch with simple vocabulary and short sentences.
C) unique to English-speaking parents.
D) spoken in a low pitch with the use of nonsense words.

Child-directed speech, also known as "motherese" or "baby talk," is characterized by a higher pitch, simplified vocabulary, and shorter sentence structures. This type of speech is used across many different languages and cultures, and is prevalent among both male and female caregivers. It is thought to aid in language acquisition, as it highlights key words and phrases and enhances the emotional connection between the adult and child.