The Rapid Increase in an Infant's Vocabulary Starting at About

question 127

Multiple Choice

The rapid increase in an infant's vocabulary starting at about 18 months of age is called

• A) the secular trend.
• B) telegraphic speech.
• C) the vocabulary spurt.
• D) phonetic advancement.

---

Definitions:

Alkene Product

The resulting compound featuring at least one carbon-carbon double bond, produced from reactions involving alkenes.

Explanation

The act of making something clear or understandable by describing or presenting it in detail.

Substitution

In chemistry, a reaction where one atom or a group of atoms in a molecule is replaced by another atom or group of atoms.

Elimination

A chemical reaction in which two atoms or groups are removed from a molecule, typically resulting in the formation of a double bond.