Q17

[andrea.feuer]

Re: Q17 (last question)
Can Ferrara visit at most four sites because the set up does not state that each archeologist has to have discovered at least on site?

[ManhattanPrepLSAT1]

That's exactly right. We know there must be exactly one G, and since the game does not require that each archeologist discover at least one site, F could discover the remaining four!

Good deduction.