求问OG13的第99题，求大神指导！

99. The stars, some of them at tremendous speeds, are in motion just as the planets are, yet being so far away from Earth that their apparent positions in the sky do not change enough for their movement to be observed during a single human lifetime.

　　(A) The stars, some of them at tremendous speeds, are in motion just as the planets are, yet being

　　(B) Like the planets, the stars are in motion, some of them at tremendous speeds, but they are

　　(C) Although like the planets the stars are in motion, some of them at tremendous speeds, yet

　　(D) As the planets, the stars are in motion, some of them at tremendous speeds, but they are

　　(E) The stars are in motion like the planets, some of which at tremendous speeds are in motion but

我知道ACDE的选项都有错，总感觉B也有错，独立主格中的some of them的them难道不会存在指代不清的问题么？我觉得既可以指代planets也可以指代stars啊……