Points I, II and III in the following plot respectively correspond to (V$$_{mp}$$: most probable velocity)

A

V$$_{mp}$$ of N$$_2$$ 300 K; V$$_{mp}$$ of H$$_2$$ 300 K; V$$_{mp}$$ of O$$_2$$ 400 K;

B

V$$_{mp}$$ of H$$_2$$ 300 K; V$$_{mp}$$ of N$$_2$$ 300 K; V$$_{mp}$$ of O$$_2$$ 400 K;

C

V$$_{mp}$$ of N$$_2$$ 300 K; V$$_{mp}$$ of O$$_2$$ 400 K; V$$_{mp}$$ of H$$_2$$ 300 K;

D

V$$_{mp}$$ of O$$_2$$ 400 K; V$$_{mp}$$ of N$$_2$$ 300 K; V$$_{mp}$$ of H$$_2$$ 300 K;