Answer: a. stretching your legs before a run
Tension can be defined as the ability of the object to be stretched. Surprisingly it can be shown up by some of the muscles and fibers of the human body. The tendons are the connective tissues which connects bones to bones and the ligaments are the connective tissues which connects muscles to bones.
Stretching your legs before a run is the correct option because on stretching the legs the tendons and ligaments muscles get stretched and a tension is created by this way.
