Would Water Molecules in Venus's Atmosphere, Whose Temperature Is 740

Multiple Choice

Would water molecules in Venus's atmosphere, whose temperature is 740 K, eventually escape into outer space? Note that a water molecule has a mass that is 18 times that of a hydrogen atom.The escape velocity of Venus is 10 km/s.For comparison, a hydrogen atom has an average velocity of 2.5 km/s at a temperature of 300 K.

A) No, the average velocity of water molecules is 0.9 km/s.
B) Yes, the average velocity of water molecules is 0.9 km/s.
C) Yes, the average velocity of water molecules is 2.1 km/s.
D) No, the average velocity of water molecules is 2.1 km/s.
E) Yes, the average velocity of water molecules is 19 km/s.