In Cap XLII of LLPSI Orberg has (from Livy) the following:
Invitati hospitaliter per domos, cum situm moeniaque et frequentia urbis tecta vidissent, mirantur tam brevi rem Romanam crevisse.
What is per domos saying here?
a) received into the homes of the Romans?
b) Looking past the homes at the walls and quantity of buildings?