Martin sostre is known as the<span> "father of the modern prisoners' rights movement" because of his lifetime achievement.
He was an activist that arrested through fabricated evidences and sentenced for 41 years in prison. In that place, he became jailhouse lawyers that help prisoners winning many cases on inhumane treatment in prisons (such as inhumane treatment for solidary confinement)</span>
Him and his friend were sent home for organizing student-lead protests and manifestations. This foreshadowed his devotion to activism and wanting to do what he could to make a change that was important to him.
Answer:
Gross National Product (GNP)