Select the correct answer.Which was a building technique introduced by the Romans? A. the column B. the Doric order C. the stoa D. the rounded arch

Analyzing the Options

1. Option A: The Column

   • While columns were used by the Romans, they were not invented by them. The Greeks had already established various column styles, such as Doric, Ionic, and Corinthian.

2. Option B: The Doric Order

   • This is a specific style of column that originated in ancient Greece. Thus, this can't be attributed to Roman innovation.

3. Option C: The Stoa

   • A stoa is a covered walkway or portico, also a Greek architectural style, not a Roman invention.

4. Option D: The Rounded Arch

   • This architectural feature was notably advanced by the Romans. They perfected and popularized the use of the rounded arch which also allowed for the construction of aqueducts and large structures like the Colosseum.

Conclusion

The correct answer is D. the rounded arch, as it represents a building technique that was indeed introduced and widely utilized by the Romans, marking a significant advancement in architecture.