To determine the correct pathway for each individual based on their duties:
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Alethea: "Gets called in when kitchen appliances break down" - This duty aligns with Maintenance/Operations as it involves repairing and maintaining appliances.
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Norma: "Works to direct traffic for highway repair" - This duty is typically part of the Construction field as it involves managing safety and operations during construction activities.
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Emmett: "Offers estimates for how much a project would cost" - This duty aligns with Design, as it usually involves planning and costing aspects related to architectural projects.
Based on the duties, the best description of their pathways is:
1. Alethea and Emmett are in Maintenance/Operations, and Norma is in Construction.
Thus, the correct answer is 1.