[单选题]
What are the respective oxidatiapj(r q7oj7u q ., k8-aib uz/x8dtfr6on sta (i2e .s:kwklutes of sulfur in the following sulfur-contain l u:ei.2k(swking species?
$SO_3^{2-}, H_2SO_4, S_8, S_2O_3^{2-}$
A. 6, 4, 0, 2
B. 4, 6, 0, 2
C. 2, 6, 0, 4
D. 4, 6, 2, 0