What are some clues that a summary or paraphrase might be incomplete or incorrect?

the correct answer is:   [c]:

                    →     " leave it out. "  

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the answer is: tabard inn, southwark.

in "the canterbury tales," by geoffrey chaucer, the twenty-nine diverse group of pilgrims is staying at a tavern in southwark, london, as they are traveling to canterbury. they wish to visit the relics of saint thomas becket in canterbury   cathedral in order to him for his when they underwent necessities.

you can't answer this. more information is needed.