Comment briefly on the following statements: (a) We know that a consumer's preferences are: (A>B) and (B>C) therefore, it is concluded that C > A. b) If an individual ALWAYS consumes 3 units of a and 2 units of b, the utility function representing these preferences is U(a,b) = 3a - 2b. c) In consumer theory there will ALWAYS exist a SINGLE optimal solution.