Venus and Earth Started Out with Roughly the Same Amount

Multiple Choice

Venus and Earth started out with roughly the same amount of water.While Earth still has water in abundance,all of Venus' was lost.Where did it go?

A) It chemically combined with CO₂ to form H₂CO₃.
B) Ultraviolet rays split the hydrogen from the oxygen components,and the hydrogen escaped into space.
C) It all evaporated into space due to the intense daytime heat of 470°C.
D) Scientists are still trying to determine this.