Points I, II and III in the following plot respectively correspond to
( $\mathrm{V}_{\text {mp }}$ : most probable velocity)
Select the correct option:
A
$\mathrm{V}_{\mathrm{mp}}$ of $\mathrm{N}_2(300 \mathrm{~K}) ; \mathrm{V}_{\mathrm{mp}}$ of $\mathrm{O}_2(400 \mathrm{~K}) ;$ $\mathrm{V}_{\mathrm{mp}}$ of $\mathrm{H}_2(300 \mathrm{~K})$
B
$\mathrm{V}_{\mathrm{mp}}$ of $\mathrm{H}_2(300 \mathrm{~K}) ; \mathrm{V}_{\mathrm{mp}}$ of $\mathrm{N}_2(300 \mathrm{~K})$; $\mathrm{V}_{\mathrm{mp}}$ of $\mathrm{O}_2(400 \mathrm{~K})$
C
$\mathrm{V}_{\mathrm{mp}}$ of $\mathrm{N}_2(300 \mathrm{~K}) ; \mathrm{V}_{\mathrm{mp}}$ of $\mathrm{H}_2(300 \mathrm{~K})$; $\mathrm{V}_{\mathrm{mp}}$ of $\mathrm{O}_2(400 \mathrm{~K})$
D
$\mathrm{V}_{\mathrm{mp}}$ of $\mathrm{O}_2(400 \mathrm{~K}) ; \mathrm{V}_{\mathrm{mp}}$ of $\mathrm{N}_2(300 \mathrm{~K})$; $\mathrm{V}_{\mathrm{mp}}$ of $\mathrm{H}_2(300 \mathrm{~K})$
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