Carvings on Late Roman Burial Vaults or Sarcophagi Reveal That

Carvings on late Roman burial vaults or sarcophagi reveal that

A) rich non-Christian Romans preferred plain,unadorned monuments.
B) late Romans wanted only biblical themes and figures on these tombs.
C) the Christian belief in life after death made the sarcophagus a likely object for art.
D) Christians cremated the dead and thus did not use burial vaults.