How Do Transposable Elements and Short Tandem Repeats (STRs)differ

How do transposable elements and short tandem repeats (STRs) differ?

A) STRs occur within exons; transposable elements occur within introns.
B) STRs occur within introns; transposable elements occur within exons.
C) The repeated unit in STRs is clustered one after another; transposable element repeats are scattered throughout the genome.
D) The repeated unit in STRs is much larger than the repeated unit of transposable elements.
E) STRs are found in eukaryotes; transposable elements are found in prokaryotes.