The near-identical oxygen isotope ratios observed in lunar and terrestrial rocks, combined with the water extracted from lunar volcanic glass having an isotopic composition indistinguishable from the water found on Earth, provides evidence for the giant-impact hypothesis, which holds that a large body striking Earth caused material to break off and form the Moon.A) near-identical oxygen isotope ratios observed in lunar and terrestrial rocks, combined with the water extracted from lunar volcanic glass having an isotopic composition indistinguishable from theB) near-identical oxygen isotope ratios observed in lunar and terrestrial rocks, combined with the extraction of water from lunar volcanic glass that is indistinguishable from the isotopic composition ofC) oxygen isotope ratios observed to be nearly identical in lunar and terrestrial rocks, combined with the fact that water extracted from lunar volcanic glass has an isotopic composition indistinguishable from theD) observation, in lunar and terrestrial rocks, of near-identical oxygen isotope ratios, combined with the extraction of water from lunar volcanic glass that is indistinguishable from the isotopic composition ofE) observation, in lunar and terrestrial rocks, of near-identical oxygen isotope ratios, combined with the fact that the isotopic composition of water extracted from lunar volcanic glass is indistinguishable from that of