A Certain Region of a Mammalian Genome Is Transcribed at Low

A certain region of a mammalian genome is transcribed at low but sustained levels using two flanking promoters. The RNA products are annealed together, processed, and used to recruit the RITS complex to this region, as well as chromatin modifying enzymes, RNA-dependent RNA polymerase, and a Dicer enzyme. Indicate whether this pathway is more closely related to that seen in miRNA (M), piRNA (P), or siRNA (S) interference pathways. Write down M, P, or S as your answer.