Which of the following is not true?

a) Staic cling or electrostatic attraction is never useful

b) lighting bolts are giant sparks caused by the build up of static charge

C) static cling cause plastic wrap to stick to your lunch

D) people who work on computer parts must reduce net the net static charges on objects to avoid damging sensetive circuits

E) static charges must be reduced in many situations to protect people and equitment