OE
The use of the word “indictment,” meaning a charge of wrongdoing, indicates that the sentence is sharply criticizing the textbooks in question and that the blanks must be completed with words that support this critique. Blank (i) describes how such textbooks characterize historical claims that are hotly debated. Since such claims are in fact controversial, it would not be surprising or inaccurate for textbooks to report them as such, so “controversial” is not correct. Of the other two responses, “sensational” has some merit, suggesting that the textbooks resort to a melodramatic presentation of historical debate; however, “factual” is the better choice, implying as it does gross inaccuracies. Tat the critique of the textbooks centers upon accuracy rather than tone is confrmed by the rest of the sentence, which deals with the relationship between the textbooks’ claims and the primary sources upon which historical scholarship is based.
The “even” that precedes Blank (ii) calls for a word that is yet further away from factual than “hotly debated.” Of the choices, only “contradicted” fits this criterion; the other two options are the opposite of what is needed. Finally, Blank (iii) calls for a word that describes the primary sources. Since the critique of the textbooks’ accuracy rests upon their divergence from these sources, the sources themselves must be characterized as authoritative. “Reliable” does exactly that, while “dubious” and “incomplete” suggest the opposite.
Thus the correct answer is factual (Choice A), contradicted (Choice F), and reliable (Choice I).