单选题 The vireo's comeback may prove that habitat along streams in Southern California is recovering from the effects of pollution, ______indicator of environmental health in a state that has lost most of its______woodlands.

• (A) a leading … superfluous
• (B) an apocryphal … ecological
• (C) a partial … surfeit
• (D) a telling … riparian
• (E) an anecdotal … arboreal