D- Columnar monuments were used only by the Romans until the 14th century
Explanation:
Hello! At present, the monuments of Rome (Italy) are still standing and many are museums for tourists. They were built during the first half of the 2nd century AD, expanded in the third century by the worship of certain relics of the martyrs and their development was completed in the fourth century.
Plot! Plot can change a movie and define its genre. For example, if the plot is in space and is about the future, then this would most likely be called a Sci-Fi movie. Hope this helps!