What was one of the major findings of Thomas Bouchard’s study of twins?

a. It demonstrated that peer influence is more important than parental influence in the development of personality traits.

b. It proved that the influence of parental environment becomes more and more important as children grow into adults.

c. He discovered almost unbelievable similarities between adult identical twins who had been separated near birth.

d. Fraternal twins showed almost as much similarity as identical twins when they reached adulthood.

e. It provided evidence that heritability is less important than researchers previously suspected.