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.
The argument is not concerned with the buildings surrounding the old quarter of Castellonia but is concerned with he cobblestone streets in the old quarter of Castellonia only. Therefore, assumption can not be about surrounding buildings.
Incorrect
(B) There are no other city areas in Castellonia that have preserved their medieval street layouts.
This is a superlative statement. There may be other city areas in Castellonia that have preserved their medieval street layouts but the argument is concerned with the cobblestone streets in the old quarter of Castellonia.
Incorrect
(C) Many modern urban centers have street designs based on principles developed in medieval times.
The argument is concerned with authentic representation of medieval street design preserved with minimal modern intervention and is not concerned with modern urban centers have street designs based on principles developed in medieval times.
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.
If the cobblestone streets in Castellonia’s old quarter are NOT more similar to their original medieval design than those in most other historic city centers, then the cobblestone streets in the old quarter of Castellonia DOES NOT provide urban planners and historians with an authentic representation of medieval street design.
If assumption is negated, the conclusion falls apart.
Correct
(E) The techniques used to preserve streets in Castellonia have not changed significantly over the centuries.
The argument / conclusion is not about the techniques used to preserve streets in Castellonia. The techniques used to preserve streets in Castellonia may or may not have changed significantly over the centuries but these streets have been preserved with minimal modern intervention.
Incorrect
IMO D