10.Which one of the following defines electrostatic discharge (ESD) correctly in computer maintenance?
a. ESD is noise caused by electrical devices such as computer and vacuum cleaner.
b. ESD is a strap that equalizes the voltage potential between a technician and a computer.
c. ESD is a difference of potential between two items that cause static electricity.
d. ESD is a device that protects electronic gear from being affected by static charges.