What's energy does the student have before he jumps of the bridge

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.

Object a has a length of 3 cm, a width of 2 cm, and a height of 4 cm. object b is dropped into a graduated cylinder. it displaces 19 ml of water. the volume of object a is: a: greater than the volume of object b b: less than the volume of object b c: equal to the volume of object b

Contains chemical energy. a. heat b. light c. natural gas