Two-Year-Old Zada Always Hears the Word Pretty Just Before a Word

Multiple Choice

Two-year-old Zada always hears the word pretty just before a word that refers to a concrete object (e.g., "pretty flower," "pretty lady," "pretty picture") . Although she does not yet know what an adjective is, at an intuitive level she understands that pretty is a "describing" word. Zada's understanding reflects:

A) expansion
B) functionalism
C) semantic bootstrapping
D) acquisition of a grammatical word