Physical exertion tends to increase

Identify the couple that could benefit most from genetic counseling before pregnancy:

The man is 39, the woman is 30; they have no children. The man and woman are both 27; they have had two spontaneous abortions. The man and the woman are both 30. The man and the woman are both 20; they are of different ethnic groups.

Psychologists and other researchers must protect and respect the privacy of research participants. This concern recognizes the requirement for

a. informed consent. c. confidentiality. b. ethics. d. scientific progress at all costs.