If the Earth's Surface Temperature Were Increased to That of Mercury's

Multiple Choice

If the Earth's surface temperature were increased to that of Mercury's day side, then:

A) we would lose most of our water vapor into space.
B) the evaporating oceans would thicken the atmosphere greatly.
C) the erupting volcanoes would greatly increase the carbon dioxide greenhouse.
D) little would happen, as the Earth is still the same mass and surface gravity.
E) the Earth would, like Mercury, lose all its atmospheric gases.