If a consumer, with a given income and price consumes three commodities x, y and z. His satisfaction will be maximum when:
A. $$\frac{{MUx}}{{MUy}} = \frac{{MUy}}{{MUz}} = \frac{{MUz}}{{MUx}}$$
B. $$\frac{{MUx}}{{MUy}} = \frac{{Px}}{{Py}} = \frac{{MUx}}{{Pz}}$$
C. $$\frac{{MUx}}{{Px}} = \frac{{MUy}}{{Py}} = \frac{{MUz}}{{Pz}}$$
D. $$\frac{{MUx}}{{Py}} = \frac{{MUy}}{{Pz}} = \frac{{MUz}}{{Px}}$$
Answer: Option C

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