Chicago's centennial celebration of the Burnham plan includes the construction of pavilions by two architects whose allegiance to the avant-garde makes them incongruous choices, given that Burnham _____ the avant-garde.

To foreshadow means to indicate or suggest something that will happen in the future. This term does not align with the context of Burnham's relationship to the avant-garde, as it implies a prescient or forward-looking attitude rather than disapproval. Thus, it does not fit the intended meaning of the sentence.

While "avoided" suggests a deliberate distance from the avant-garde, it lacks the strong emotional connotation present in "detested" or "abhorred." This makes it less effective in conveying the depth of Burnham's disapproval and does not fully capture the incongruity implied in the sentence.

The term "anticipated" implies a sense of expectation or preparation for the avant-garde, which contradicts the idea of Burnham’s disapproval. It suggests a positive or neutral stance rather than a rejection, making it unsuitable for completing the sentence meaningfully.

To satirize means to mock or ridicule. While this could suggest some level of disdain, it does not directly imply a strong rejection like "detested" or "abhorred." The nuances of satire do not align with the clear disapproval needed for the sentence to convey the intended incongruity.