A benefit of the arch over the post-and-lintel system is that the arch _________.

Question

a. is a more interesting shape
b. can be made of any material
c. can span wider spaces
d. uses less material
e. all of these are correct

Answer 1

c. can span wider spaces

a. Incorrect. Both the arch and the post and lintel methods are interesting shapes.
b. Incorrect. The arch requires certain types of material, such as stone or concrete.
c. Correct. The arch can span wider spaces, which was used to great effect by architects in the ancient world.
d. Incorrect. The arch does not necessarily use less material.
e. Incorrect. The arch was important for creating wide-open spaces in architecture that was previously impossible.