21. please help

A negatively charged sphere is suspended on the end of an insulated string in the region between two vertically, metal, parallel plates that's are connected to a coil of wire. A magnet is suddenly thrust into the coil of wire, as illustrated below. Insulated string - Plate II IS N charged ball 21. When the magnet is moved as illustrated, the direction of the motion of the negatively charged sphere is "toward plate ll () into the page () toward plate !) out of the page