Will name best answer the brainliest (if you answer well)
a negatively charged metal rod touches a positively charged metal rod and both become neutral. what changed when the two rods touched?
a. a spark moves to make both rods normal.

b. excess electrons move from the negative rod to the positive rod.

c. excess protons move from the positive rod to the negative rod.

d. the rods exchange positive and negative atoms.