6(a). State the first fundamental Theorem of Welfare Economics. (3 marks) 6(b) What is Walras' law? (3 marks) 6(c). Suppose two individuals, A and B, consume two goods (x, x, ). A's initial endowment is (xTA, x24) = (1,2) and B's endowment is (X , x2 ) = (2,1). Assume that A has the utility function:UA = U(x, d,x2)= (x x,, and that B has the utility function: UB = B B Calculate the Walrasian General Equilibrium. (12 marks)