Betty and Allen Are Part of a Theatrical Group, So

Betty and Allen are part of a theatrical group, so they travel frequently. Their child, Cara, is an 11-month-old baby and travels everywhere with them. Even though Cara is usually comfortable with strangers, a full-time nanny, who Cara grew fond of in a day, helps take care of her when her parents are performing. Cara has a regular routine but easily adapts to new eating and sleeping habits whenever the family moves across states. According to Chess and Thomas, Cara would be classified as

A) a passive child.
B) an easy child.
C) a slow-to-warm-up child.
D) an inhibited child.