challenge: What was discovered by a shepherd in 1971 at the Sankarjang archaeological site in Odisha, India?
  
  A. A buried temple with several stone idols
  B. A set of 20 long unfinished chipped and ground, lithic bars and axes of basalt, along with human skeletal remains and metallic artifacts
  C. A collection of ancient pottery and ceramics
  D. A series of intricate rock carvings and paintings
  Answer: 