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Question 13 2.5 pts Once again, consider Babs and Donna, who can each produce cake, beer, or some combination of the two using only 100 labor hours. Each has a PPF that is a straight line. Babs can produce a maximum of 400 cakes if she produces no beer, and 500 units of beer if she produces no cake. Donna can produce a maximum of 200 cakes with no beer produced; if she makes no cake, she can produce 400 units of beer. If In autarky each producer spends half of her time producing cake and the other half producing beer, then in autarky Babs would produce units of cake. (Carefully follow all numeric instructions.) 450