Which of the following was not a health practice evaluated in To Catch a Cold

Choose the statement about surveys that is false.

A) Surveys are the most practical way to gather data on large numbers of people. B) Surveys consist of interviews, questionnaires, or a combination of the two. C) Interviews take less time to administer than questionnaires, and the results are more uniform. D) Questionnaires prevent the researcher's mannerisms from influencing the participant's answers.

Genes and environment work together to produce developmental change. This is referred to as

a. exclusivity of genes and environment. b. transactions of genes and environment. c. predominance of genes. d. predominance of environment.