Christopher's Mother Is Considering Different Wallpapers for Decorating His Room

Multiple Choice

Christopher's mother is considering different wallpapers for decorating his room. She asks him, "Which one do you like better: the striped or the plaid?" Christopher's vocabulary doesn't include the word "plaid," but he's able to figure out what the word must mean based on the context. Christopher is using _____ to add a new word to his vocabulary.

A) lexical addition
B) categorical embellishment
C) vocabulary expansion
D) fast-mapping