Let A = {a,b,c,d) and B = {x,y,z, w, v}. (a) Is it possible to find a one-to-one function f from A to B? If so, construct such a function f. If not, explain why not. (b) Is it possible to find an onto function g from A to B? If so, construct such a function g. If not, explain why not. (c) Is it possible to find a function h: B → B that is not one-to-one? If so, construct such a function h. If not, explain why not.