ROCKY MOUNT, N.C. (AP) The N.C. Division of Motor Vehicles is opening some of its offices on Saturdays, a move coming one week after it resumed regular road testing after a year’s absence. The agency said in a news release that Saturday hours would resume at 16 offices across the state, starting this Saturday. Eight of them will focus on road testing to help reduce the backlog of teenage drivers who are required by state law to pass a road.