TOEFL Reading: ETS-TOEFL阅读机经 - 55Y5PN33J67ZP9LYL$

Paragraph 6 indicates that greater frequency of neoteny in salamanders may be associated with all of the following EXCEPT A. an environment that is richer for larvae than for adults B. an inadequate food supply for larvae C. a high-altitude location D. a genetic makeup favoring neoteny