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100 90 C 80 A DRYERS 8 : 8 8 8 D B 20 10 10 20 30 40 50 60 70 80 90 100 WASHERS Refer to Figure 2-3. Efficient production is represented by which point(s)? Oa. C Ob. A, B, and C Oc. A, B, and D Od. A, B