A piece of plastic is uniformly charged with surface charge density eta1. The plastic is then broken into a large piece with surface charge density eta2 and a small piece with surface charge density eta3. Rank in order, from largest to smallest, the surface charge densities eta1 to eta3.?
a. eta1>eta2>eta3
b. eta1>eta2=eta3
c. eta1=eta2=eta3
d. eta2=eta3>eta1