(C) After walking on a rug, you touch a metal door handle and feel a small static discharge, or shock. The spark associated with static electricity is caused by the electrostatic discharge of excess...

(C) After walking on a rug, you touch a metal door handle and feel a small static discharge, or shock. The spark associated with static electricity is caused by the electrostatic discharge of excess charge flowing to its surroundings. In this case, electrons were imparted to your body from the rug’s fibers as you walked over it, giving you an excess negative charge. This excess negative charge was then quickly transferred to the conductive metal door handle, and you felt the shock of the resultant depolarization. You are interested in modeling the transfer of charge in and/or out of your body during the shock.