Susan's Car Gets Stuck in the Snow,and No Matter What

Multiple Choice

Susan's car gets stuck in the snow,and no matter what she tries,her tires just keep spinning as she can't get any traction underneath her tires.She looks at the items in her trunk (crackers,her school books,some windshield washer fluid,and some kitty litter) and is frustrated because she doesn't seem to have anything to help her out of her situation.Susan is displaying __________ as she did not think of using kitty litter to sprinkle under her tires to help with traction.

A) a mental set
B) functional fixedness
C) the availability heuristic
D) the hindsight bias