Which of These Research Methods Would a Behavioural Geneticist Be

Multiple Choice

Which of these research methods would a behavioural geneticist be likely to employ to study the influence of genetics on personality?

A) examining heritability in twins and adopted individuals
B) interviewing people who have mental health issues
C) administering paper-and-pencil or computerized questionnaires to hundreds of people
D) examining the changes in the expression of the genetic code over the lifespan