By about 12 months, most infants __________
A) begin to use intonation in their language.
B) build a vocabulary of one-word phrases.
C) begin to distinguish, in their language, between themselves and others.
D) begin to form two- and three-word sentences.

Question

Quizplus · Accepted Answer

By about 12 months, most infants typically start to build a vocabulary of one-word phrases, often referred to as "holophrases."

By About 12 Months, Most Infants __________