Given the production-possibilities-frontier/community-indifference-curve diagram below, where P is the autarky production point, C is the free trade consumption point. Pi represents autarky prices, and P2 represents free-trade prices, the free-trade production point is and the autarky consumption point is
good Y
Si
P
R
good X
a.R;G b.R;P c.P; G d.G;P