Social impact theory suggests that the total impact of other people on an individual depends on three characteristics of the observers, namely,

One of the ways Mr. I adapted to his color blindness was that

(a) he became a night person, exploring different cities during the night (b) he developed acute night vision that he did not have before (c) he entered a new and successful phase of his artistic career, a "black and white phase" (d) all of the above

Leetia is 2 months old. She is crying throughout the day for several hours at a time. Nothing

her parents do for her seems to help. Leetia most probably developed a. the ability to stay awake when she should be sleeping. b. a rooting behavior. c. a stubborn temperament. d. colic.