Which Is NOT True of Gel Electrophoresis

Which is NOT true of gel electrophoresis?

A) Smaller DNA fragments remain together and cannot be separated.
B) PCR fragments can be separated using an electric current.
C) For any one STR region,a person may have either one or two bands.
D) PCR fragments of the same length travel through the gel at the same rate.
E) Large fragments stay closer to the loading wells.