Bunuel
Although similar ancient camel art has also been found in Yemen and Oman, the newly uncovered engravings at the so-called “Camel Site” — an archeological excavation in Saudi Arabia
being studied by a group of French researchers and that is stylistically unique.
A. being studied by a group of French researchers and that is stylistically unique
B. being studied by a group of French researchers that is stylistically unique
C. that is being studied by a group of French researchers and is stylistically unique
D. that is being studied by a group of French researchers – is stylistically unique
E. being studied by a group of French researchers – are stylistically unique
VERITAS PREP OFFICIAL SOLUTION:
While there is a clear choice at the start of each answer between “that…” and “being...” this is a classic false decision point - both correctly modify “excavation.” Given that, look at the end of each choice where you have several important distinctions. (D) and (E) contain a dash, indicating that there is an end to the parenthetical information after “Camel Site” while (A), (B), and (C) do not. Considering that difference, you should see that there must be a dash in the correct answer. Without it, there is no verb for the main subject of the sentence “engravings” and the sentence illogically ends at “Camel Site.”
To decide between (D) and (E), use the "slash-and-burn" technique to get rid of the modifiers and better assess the core of the sentence: “the engravings…IS or ARE stylistically unique.” Clearly, “engravings” is plural so you can eliminate (D) as it uses the singular verb “is.” Only (E) uses the proper dash to end the extra information given modifying the “Camel Site” and the correct plural verb.