The compound that has the largest $\mathrm{H}-\mathrm{M}-\mathrm{H}$ bond angle $(M=N, O, S, C)$, is :
$\mathrm{H}_{2} \mathrm{O}$
$\mathrm{CH}_{4}$
$\mathrm{NH}_{3}$
$\mathrm{H}_{2} \mathrm{~S}$
Correct Option: , 2
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