e. The presence of observers would be least likely to lead to better and faster performance on solving a crossword puzzle.
This is because puzzles such as crosswords require a lot of focus and concentration and any external influence could act as a distraction. With observers present, the focus of the puzzle solver would be divided between the task at hand and the observers watching them. This would lead to slower and less accurate performance as compared to when the puzzle is solved without any external influence.
Additionally, the puzzle solver may feel stressed and anxious due to the presence of the observers, making it harder to think clearly and logically. In comparison, tasks such as raking leaves, washing dishes, and bicycle racing require physical action and are well suited for having observers present as this could provide motivation and encouragement to perform better and faster.
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