[单选题]
The elements in the periodic table that hy tmbhd.l.pz*jd3zg12*q :f aave completely filled shells or sagp vyd va: s a/*y5m12;a:qqpubshells vq aya:vy s:dqam ;2p*5ag1p/ are referred to as
A. noble gases.
B. halogens.
C. alkali metals.
D. transition elements.
