Which of the Following Statements Concerning the Use of Animals

Which of the following statements concerning the use of animals in research is true?

A) Animals may never be subjected to pain or discomfort in research.
B) Animals may be subjected to pain or discomfort only when no alternative procedure is available and when the goals of the research are judged to justify such procedures.
C) Animals may be subjected to pain or discomfort whenever an alternative procedure is not available.
D) Animals may be subjected to pain or discomfort whenever the researcher's goals justify such procedures.