Suppose that the Earth had grown to a large enough mass of rock and metal that it was able to retain hydrogen and helium gas from the Solar Nebula. Approximately how many times greater would the mass of the Earth be if it had retained these light gasses, in addition to the materials that make up its current composition, all in the same proportions that they are found in the Solar Nebula?
A. Approximately the same
B. 98% greater roughly
C. Seven times greater
D. Roughly 50 times greater
E. More than 150 times greater