New parents Willy and Bernice have both spent their lives being short-tempered. They spend a great deal of their time together apologizing for their thoughtlessness. Which of the following statements about temperament might be alarming to Willy and Bernice as they think about having children?
A. Temperament is not learned.
B. Temperament appears to be largely determined by genetics.
C. Second-born children are likely to have more difficult temperaments than firstborns.
D. Temperament often changes on a frequent basis.
Answer: B
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