Here is a function definition in ML: fun whatAml (n, nil) = nil whatAml (0, h:: t) = h :: whatAml(1,t) whatAml (1, h :: t) = whatAml(0,t); (a) Show every step of the evaluation process, give the results obtained by evaluating the following: whatAml (0, [6, 5, 4, 3, 2, 1]) (b) Describe the effect of the function whatAml in general. (c) The language ML provides type inference. What type would be inferred for the function whatAml? Explain your answer