Let S = {a, b, c, d, e, f, g} be a collection of objects with benefit-weight values.    a: (12, 4)   b: (10, 6)   c: (8, 3)   d: (11, 4)   e: (14, 3)   f : (7, 2)   g: (9, 7) Which objects are in the optimal solution to the fractional knapsack problem for S assuming we have a sack that can hold objects with total weight 9?多项选择题

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Let S = {a, b, c, d, e, f, g} be a collection of objects with benefit-weight values.    a: (12, 4)   b: (10, 6)   c: (8, 5)   d: (11, 7)   e: (14, 3)   f : (7, 1)   g: (9, 6) Which objects are in the optimal solution to the fractional knapsack problem for S assuming we have a sack that can hold objects with total weight 10?

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