\\[ \\begin{array}{ccc} \\mathbf{x}=(50,100,150) & , \\text { i.e., } & \\sum_{i=1}^{3} x^{i}=300 \\\\ \\mathbf{y}=(90,90,90) & , \\text { i.e., } & \\sum_{i=1}^{3} y^{i}=270 \\\\ \\mathbf{z}=(80,250,250) & , \\text { i.e., } \\quad \\sum_{i=1}^{3} z^{i}=580 \\end{array} \\] Which of the above alternatives is efficient according to Kaldor-Hicks Efficient and Wealth maximization criterion