Question

Frank lost a contact lens in his kitchen; he searches for it by examining each linoleum tile in turn to see if the lens is contained within the square. gemma lost a lens in her kitchen; she looks for it near the base of the fridge and around the stove because these are the two appliances she remembers using when she was last in the kitchen. which individual is using a heuristic

Answer 1

I believe the answer is: only Gemma is using a heuristic

Heuristic refers to the simplest/non-complicated set of thinking that people used to solve their problem but still considerably effective.
We often use heuristic when we're dealing the problems that are trivial / do not possess a high stake in our life..