[讨论]单复数

10.         Tektites, which may have been propelled to Earth from lunar volcanoes, are much like the volcanic glass obsidian, but their chemical composition is different than any terrestrial lava; they contain far less water than obsidian does and none of its characteristic microcrystals.fficeffice" />

(A) is different than any terrestrial lava; they contain

(B) is different than any terrestrial lava’s, containing

(C) is different from that of any terrestrial lava; they contain

(D) differs from any terrestrial lava in containing（C）

(E) differs from that of any terrestrial lava’s, containing

they contain far less water than obsidian does and none of its characteristic microcrystals. 这里不冲突吗？请讲解