Tall, dark hair, kind of long beard, and always wore black
The vice president's only constitutional duty<span> is to preside over the Senate! Though the v</span>ice presidents<span> can't really vote there, but only to break a tie. They also can't formally address the Senate. Butttt they can with the senators' permission! </span>
I believe the answer is: Examining age at first arrest as a predictor of adult criminal history.
Regardless of their actions, prisoners still had the same right as any legal citizens, which mean they cannot be forced to become a subject of research that might compromise either their psychological or physical well being. Examining age usually can be done simply by reading the prisoners' document.
B is your answer hope this helps
Revolutionary movement
It is a specific type of social movement dedicated to carrying out a revolution. Charles Tilly defines it as "a social movement advancing exclusive competing claims to control of the state, or some segment of it".