[单选题]
The elements in the periodic tamp8rmqvlj b28rme5m ila : )1/ble that have completely filled nl0/arfgri 1 j -(/.wx)klvwasy.n( n shells or subshells arew.alx/(n fi/syrvrwnnl.- ( gk a)1j0 referred to as
A. noble gases.
B. halogens.
C. alkali metals.
D. transition elements.
