Hearing, "The Ape Held the Qwaff and Ate It," a Child

Multiple Choice

Hearing, "The ape held the qwaff and ate it," a child guesses that "qwaff" is a type of food from the way this new word was used. This is

A) syntactical bootstrapping.
B) a lexical contrast constraint.
C) the binding of a free morpheme.
D) a fast-mapped expressive style.