Zelma is asked to think of all the words she can, beginning with the letters "squ," as in "squeak." later she is given a fill-in-the-blank task on which one of the items is "s _ _ o n g." zelma keeps trying to make "squong" a word, and has trouble thinking of the common word "strong." zelma's ability to solve this problem has been hampered by: a mental set. confirmation bias. functional fixedness. an algorithm.