Explanation

The sentence suggests that the film is not well described by the conventional term “political thriller.” The film is not political but rather apolitical, and the phrase “as apolitical as it is . . .” sets up a parallel between “apolitical” and the blanked word; therefore, the blanked word should go against the term “political thriller” in the same way that “apolitical” does. “Humdrum” and “dull” are the opposite of “thrilling” and are therefore the best choices.

Thus, the correct answer is humdrum (Choice D) and dull (Choice F).
_________________

Sandy
If you found this post useful, please let me know by pressing the Kudos Button

Try our free Online GRE Test