John is thinking of a two-digit number. He provides four statements about it, and exactly three of the following four statements are true:
(1) It is a multiple of 8.
(2) It is less than 50.
(3) It is odd.
(4) The product of its digits is 10.
This information is sufficient to uniquely determine the number. What is the units digit of John's number?
1
2
5
8
0