Body mass index helps you find your body ___

The majority of early psychological research reflected the a. differences among males and females b. concerns and interests of minorities c. differences among various cultures d. concerns and interests of white males select the best answer from the choices provided a b c d

What exercise allows you to specify the muscles to be traineda. i sonicb. anaerobicc. isometricd. aerobic

How could you find out if that advice is based in scientific evidence?