Based on the given information, the statement that could be true for g is Option 4: g(-1) = 5.
This is because it is stated that g(-1) = 2, but the range of g(x) is 0 ≤ g(x) ≤ 18. Therefore, it is possible for g(-1) to be equal to 5, which falls within the range of 0 ≤ g(x) ≤ 18.