One-month-old babies, as parents are well aware, have an unlearned but highly effective form of verbal expression that is _____.
A) crying
B) babbling
C) cooing
D) humming

Question

Quizplus · Accepted Answer

Crying is an unlearned form of verbal expression that one-month-old babies use effectively to communicate their needs and discomforts. Babbling and cooing are developmental milestones that typically occur later, and humming is not a primary form of communication for infants.

One-Month-Old Babies, as Parents Are Well Aware, Have an Unlearned