Consider the following set of ordered pairs of the elements of a set A = {1,2, 3, 4} of numbers and a set B = {a, b, c, d} of letters. {(1, d), (2, đ), (3, a), (2, d) , (4, 5)} Select all options true...

Extracted text: Consider the following set of ordered pairs of the elements of a set A = {1,2, 3, 4} of numbers and a set B = {a, b, c, d} of letters. {(1, d), (2, đ), (3, a), (2, d) , (4, 5)} Select all options true of this set. O This is not a map from A to B. O This is a map from A to B and is onto. O This is a map from A to B and is one-to-one. O This is a map from A to B and is neither one-to-one nor onto.