A) <2 xmlns="http://www.w3.org/1998/2/2ML">4πNT/4500  B) <2 xmlns="http://www.w3.org/1998/2/2ML">πNT/45000  C) <2 xmlns="http://www.w3.org/1998/2/2ML">2πNT/4500  D) <2 xmlns="http://www.w3.org/1998/2/2ML">2πRNT/45000