10 portions of pizza and 10 portions of chips are available. quantities of which are denoted x and y, respectively. These two goods can be split in any way between Robinson and Friday. Suppose that Robinson's utility depends on how much pizza, xx, and chips. va, he consumes. In particular, his utility is equal to the summation of the two quantities, x, + Va. Friday's utility also depends on the consumption of these two goods. ( XF. VP). and it is equal to xp+ 2 yp. Which allocations are Pareto efficient? A All chips for Robinson, all pizza for Friday B Equal split: 5 pizzas and 5 chips for Robinson, the rest for Friday. C. All pizza and all chips for Robinson, none for Friday. D. 7 pizzas and 7 chips for Robinson, the rest for Friday