Charles Grew Up in Georgia but Has Lived in New

Charles grew up in Georgia but has lived in New York City all of his adult life. From time to time, he visits his relatives back in Georgia. Which scenario demonstrates the chameleon effect?

A) When Charles visits his relatives, he finds that he can no longer recall their names.
B) Charles no longer likes the traditional southern foods his relatives enjoy preparing.
C) When Charles is around his relatives, he unconsciously reverts back to a southern drawl.
D) Charles teases his relatives that the New York Giants will beat the Atlanta Falcons in the football playoffs.