Not quite sure about this one

(a) Given the following preference profiles among 3 individuals, can the social decision be determined when the guiding rule is to decide by a pairwise majority vote? t Z Z y Z (b) Now suppose that the social choice function satisfies Axioms #1-4. If it is also known that the social decision establishes a preference for y over z, is this infor- mation sufficient to predict the social decision? (c) Now suppose that the social choice function also establishes a preference for z over t for the above preference profile. Is this information sufficient to predict the social decision in the following preference profile? 1 2 3 Z Z y c t. Z