The cobblestone streets in the old quarter of Castellonia provide urban planners and historians with an authentic representation of medieval street design. These streets have been preserved with minimal modern intervention, unlike many other historic city centers that have been updated or rebuilt.
Which of the following assumptions is the argument above making?
(A) The buildings surrounding the old quarter of Castellonia are largely from the same era as the cobblestone streets.
We are not talking about the buildings of Castellonia, irrelevant.
Incorrect(B) There are no other city areas in Castellonia that have preserved their medieval street layouts.
Out of scope of the argument. All we know is the old quarter streets are unlike many other historic city centers that have been updated or rebuilt. Hence it cannot be an assumption.
Incorrect.(C) Many modern urban centers have street designs based on principles developed in medieval times.
Sure, but the answer is too broad and not precise enough/close to the argument.
Incorrect(D) The cobblestone streets in Castellonia’s old quarter are more similar to their original medieval design than those in most other historic city centers.
Exactly, that's what the hidden link within the stated fact is.
"These streets have been
preserved with minimal modern intervention,
unlike many other historic city centers that have been updated or rebuilt."
Which means they are the CLOSEST to the original medieval design.
Correct(E) The techniques used to preserve streets in Castellonia have not changed significantly over the centuries.
The techniques is not of value to the argument hence Incorrect.