Which of the following statements are true about the following relation: A = [n, g, y, u), B = [1, 2, 3] Relation R goes from A to B R= [(u, 3),(n, 2).(y, 3),(n, 1)) The relation is onto (regardless if it is a function) The relation is one-to-one (regardless if it is a function) The relation is a function The relation is a one-to-one correspondence