How can you apply training principles to improve health related components of fitness

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

When a researcher debriefs her participants, she: provides a detailed explanation of the study. removes their undergarments. tells them they can stop taking part at any time. provides an detailed explanation of the study, and tells them they can stop taking part at any time.

Alot of ! why does society places such an emphasis on the value of physical health and wellness? what are the benefits of active living?