A psychological researcher who has previously worked only with animals would like to perform a new ...

A psychological researcher who has previously worked only with animals would like to perform a new experiment involving human participants. According to the APA Ethics Code,
 
  a. The psychologist can perform the experiment
  b. The psychologist can perform the experiment if it is conducted under the supervision of another psychologist who has previous experience with humans
  c. The psychologist can perform the experiment if the experiment does not cause psychological harm to the participants
  d. The psychologist cannot perform the experiment

Question 2

The decision to conduct research often represents a conflict between
 
  a. Commitment to research and the cost to subjects
  b. The IRB and the researcher
  c. The APA and the IRB
  d. The costs to the subject and benefits to the subject