在298.15K,反应Zn(s)+1/2O 2(g)=ZnO(s)的Δ rHmθ = -351.5kJ·mol -1,反应H.g(l)+1/2O 2(g)=HgO(s)的Δ rHmθ= -90.8kJ·mol -1,则反应Zn(s)+HgO(s)=Hg(l)+ZnO(s)的Δ rHmθ等于( )
选项：

A:-260.7kJ·mol -1
B:260.7kJ·mol -1
C:-306.1kJ·mol -1
D:-169.9kJ·mol -1
E:-442.3kJ·mol -1