Answer :
The correct response is d. we assign a particular use to an object, and that use tends to remain stable. in functional fixedness,
Functional fixedness is a cognitive bias that prevents someone from using something other than how it has historically been utilized. Gestalt psychology, a branch of psychology that emphasizes holistic thinking, is where the concept of functional fixedness originates. Functional fixedness was first described by Karl Duncker as a conceptual barrier to using something in a different way when doing so is necessary to solve a problem. This "block" restricts a person's capacity to use resources provided to them to finish a task since they are unable to use those resources for anything other than their intended use. For instance, if someone just has a hammer and requires a paperweight, they might not realize how the hammer can be utilized in this capacity. Functional fixedness is the inability to envisage a hammer used for a purpose other than striking nails; the individual was unable to see using the hammer for anything other than its intended purpose. Children aged 5 do not exhibit any symptoms of functional fixedness when assessed. This, it has been said, is because, by the time children reach the age of five, every objective that can be accomplished with an object is equivalent to any other goal. However, by the age of 7, kids have developed the propensity to value an object's original function.
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