Question ID:PT90 S2 Q14 Passage:Unlike stars, planets do not generate light, but only reflect it. Besides stars, there are many other celestial objects in this galaxy that are not planets. Hence, there are celestial objects in this galaxy that generate light but are not stars.  Stem:The reasoning in the argument is most vulnerable to criticism on the grounds that the argument fails to consider the possibility that Correct Answer Choice:EChoice A:this galaxy contains no celestial objects that reflect light other than planets Choice B:celestial objects in this galaxy comprise only a minute percentage of all the celestial objects in the universe Choice C:celestial objects in this galaxy are not the only celestial objects that generate light Choice D:there are numerous features that distinguish stars from planets besides the ability to generate light Choice E:planets are not the only celestial objects that do not generate light