4. Using the mapping diagram below, which of the following statement is not true?
A B -2 →-1 0 5 1 a. The set of the domain is {1, 3, 5).
b. The set of the range is 4-2, -1, 0, 1, 2}
c. The domain 5 is mapped to two range 0 and 2.
d. The relation is a function.​