The Noncoding Regions of Mammalian Mitochondrial Genomes Have Few to No

The noncoding regions of mammalian mitochondrial genomes have few to no repair mechanisms,but no real selective pressure.Which of the following are consequences of this condition?

A) a rate of mutation that is much higher than that of nuclear sequences
B) a high rate of loss of mitochondrial genomes relative to nuclear sequences
C) a high rate of natural selection for genomes identical to those of the mother
D) a lower rate of mutations that remain in maternal lineages over evolutionary time
E) a rate of mutation that can increase with successive generations in a maternal line