Question

what is the original site of rome described as?
a river valley
an island in the seine river
a hilltop site on the italian peninsula
a reclaimed polder

Explanation:

The original site of Rome was a hilltop site on the Italian peninsula (specifically the Palatine Hill and other surrounding hills on the Italian peninsula). The other options: a river valley doesn't match Rome's origin (Rome is on hills, not a river valley in the way the option implies), an island in the Seine River is related to Paris (Seine is in France, not Italy), and a reclaimed polder is a land - reclamation feature not related to Rome's origin.

Answer:

A hilltop site on the Italian peninsula