The answer is for example they continued the use of columns, but more as a decoration in Roman buildings.
Explanation:
The Romans were able make improvements in certain designs and inventions from the Greek. The Ancient Romans created curved roofs and large arches. These things helped them to support more weight than Greek buildings which used both posts and beams. The Roman people loved to play games and so they built large amphitheaters and Colosseum.
The sculptural art of the period has to be durable. They used marble to make monuments to great human achievements and achievers.
Thus the sentence that best supports the conclusion that ancient Romans improved on the strength of older designs is For example they continued the use of columns, but more as a decoration in Roman buildings.
