Concept:Daily egg production is converted to weekly production, then divided by the number of eggs per tray.Explanation:The farm records 1,680 eggs laid per day.One week has 7 days, so total eggs in one week = 1,680×7=11,760.Each tray holds 30 eggs.Number of trays required = 3011,760=392.Thus, 392 trays will be collected in one week.Answer:Option D: 392 trays.