TOEFL Reading: ETS-TOEFL阅读机经 - 6MR5A25F60L4LRCIL$

In describing Jurassic-age fossils found in China as "beautifully preserved" the author means that these fossils A. seem much younger than they actually are B. were found as a result of unusually good luck C. have suffered little damage over time D. were comparatively easy to dig up