List the numbers between 1 and 100 that follow these rules: rule 1: the number is odd. rule 2: the sum of its digit is 8

Which of the following best describes the graph below? + + 2 + 3 + 4 1 o a. it is not a function. o b. it is a one-to-one function. o c. it is a many-to-one function. o d. it is a function, but it is not one-to-one.