Which electronic configuration for oxygen is correct according to Hund's rule of multiplicity

• A.                 \[1{{s}^{2}},2{{s}^{2}}2p_{x}^{2}2p_{y}^{1}2p_{z}^{1}\]               
• B.                 \[1{{s}^{2}},2{{s}^{2}}2p_{x}^{2}2p_{y}^{2}2p_{z}^{0}\]
• C.                 \[1{{s}^{2}},2{{s}^{2}}2p_{x}^{3}2p_{y}^{1}2p_{z}^{0}\]               
• D.                 None of these