Devin Is a Cheerful Nine-Month-Old Infant Who Wakes Up Every

Multiple Choice

Devin is a cheerful nine-month-old infant who wakes up every day at 5:30 a.m.,eats lunch every day at noon,and goes to bed at 9 p.m.He gets fussy in the afternoon but can usually be lulled to sleep.As most babies classified by temperament pattern,he would most likely be classified as ____.

A) slow-to-warm-up
B) fast-to-warm-up
C) easy
D) difficult