The correct answer is (d.) It was advanced. Based on City, the advancement of the technology can be inferred about the technology of the ancient Romans. Their technology supported the Roman civilization and as well as the Roman military to be possible.
1) the children are watching a documentary now
2)bruce did not have a pet when he was a child
3) sauroposeidons are the largest dinosaurs that ever lived
4) the museum usually opens at 9:00
5) patrick loves to play chess with his friends