Samples prove that the Vase was manufactured in Greece. -
FactConclusion - the location of the vase indicates that there was a trade between Sicily and Greece 2700 years ago SINCE the occupant of the tomb died during the reign of a ruler who lived 2700 years ago.
What is an objection that can weaken the conclusion? What if someone other than the occupant 2700 years ago kept the vase there? So, we have to shield the argument against the possible objection that can weaken the conclusion. So, the assumption is no one else kept the vase there for the conclusion to hold. Which of the following is an assumption on which the argument depends?
(A) Sicilian potters who lived during the reign of the ruler did not produce work of the same level of quality as did Greek potters. -
It doesn't matter as the argument says as a fact that this vase was manufactured in Greece. Distortion. (B) Sicilian clay that was used in the manufacture of pottery during the ruler's reign bore little resemblance to Greek clay used to manufacture pottery at that time.
It doesn't matter as the argument says as a fact that this vase was manufactured in Greece. Distortion. (C) At the time that the occupant of the tomb was alive, there were ships capable of transporting large quantities of manufactured goods between Sicily and Greece. We don't need to assume that ships were the only means of transport. It can be any other means of transportation as well.
Out of scope. (D) The vase that was found at the Sicilian tomb was not placed there many generations later by descendants of the occupant of the tomb.
Exactly. We need to assume this to shield the argument. (E) The occupant of the tomb was not a member of the royal family to which the Sicilian ruler belonged.
Doesnt matter. Out of scope.