In One Study Described in Your Textbook (Sternberg & Campos

In one study described in your textbook (Sternberg & Campos, 1990) , researchers restrained the arms of 1-, 4-, and 7-month-old infants to see what facial expressions they would display, and where they would look. According to the researchers, what did the results of this study suggest?

A) That babies can experience anger as early as 1 month of age
B) That a distinct anger expression does not emerge until at least the second year of life
C) That newborn babies are frightened by this experience, but by 7 months babies are angered by it
D) That changes in the expression of anger reflect development in the babies' ability to cognitively appraise the situation