from the Blue Book, Sample Test 3, Section 7, page 541
Both authors agree on which of the following points?The two arguably correct answers are C and D. I chose D after C. said he was choosing D. We compare notes sometimes when we're doing sample tests. Bad habit.
(A) A maritime environment would have presented unique challenges to early Americans.
(B) The first Americans most likely subsisted on mastodons and other big game.
(C) Overland travel to the New World would have been difficult during the most recent ice age.
(D) It may never be definitively determined when America was initially settled.
(E) The Clovis people were most likely the first Americans.
Then C. went back and changed his answer to D on grounds that in fact neither author had actually said, explicitly, that it may never be definitively determined when America was initially settled.
Never break the Asperger rule.