In Gel Electrophoresis, One Can Determine the Relative Abundance of a Fragment

In gel electrophoresis, one can determine the relative abundance of a fragment (compared with other fragments of the same size) by

A) examining how quickly it moves on the gel; the fastest fragments are the most abundant.
B) examining how quickly it moves on the gel; the slowest fragments are the most abundant.
C) examining the intensity of the band; more intense bands are more abundant.
D) examining the intensity of the band; less intense bands are more abundant.
E) You cannot determine relative abundance of fragments using gel electrophoresis.