Which of the Following Describes a Difference Between Transposable Elements

Which of the following describes a difference between transposable elements and short tandem repeats (STRs) ?

A) STRs may result in phenotypic differences between individuals; transposable elements are non-coding regions.
B) STRs occur within introns; transposable elements occur within exons.
C) STRs make up only a small percentage of a given genome while transposable elements often make up larger parts of a given genome.
D) STRs contain much larger repeated units those found in transposable elements.