Dr. Jones performed a vitamin supplementation study. She had 6 subjects, all of which were men age 18-22. The subjects took 10 mg of vitamin B6 once a day for 10 days. At the end of the study, the subjects reported increased stamina and an average increase in muscle of 1.3 pounds. Which of the following statements is TRUE regarding this study? a. The study had a control group.
b. The study was well designed concerning the number of subjects and the duration.
c. The results are applicable to men and women.
d. Public recommendations should be made about the benefits of vitamin B6 supplementation and increased stamina and muscle mass.
e. None of the above