In addition to highly repetitive and unique DNA sequences, a third category of DNA sequences exists. What is it called, and which types of elements are involved in it?

A) composite DNA; telomeres and heterochromatin
B) multiple gene family DNA; hemoglobin and 5.0S RNA
C) dominant DNA; euchromatin and heterochromatin
D) moderately repetitive DNA; SINEs, LINEs, and VNTRs
E) permissive DNA; centromeres and heterochromatin