The survey shows some major publishers, institutions and businesses have begun to make________ to the new age in order to meet the needs of the social and economic change.
More than 10,000 relics, ____ between 5,000 to 3,000 B.C., ___ at Sanxingdui since it was first discovered.
A. dating back to, was dug up B. dating back to, have been dug up
C. dated back to, has been dug up D. dated back to, were dug up