Considering an unordered array without duplicates and binary search. Which of the following comments makes sense?

Question $7$ options:

If an array can store any data type, a binary search won't be efficient

because a array is unordered, a binary search cannot guarantee finding the item being sought

because binary search takes O$($N$)$ time, it would be better to use an ordered array

since the array doesn't have duplicates, binary search doesn't really have an advantage over linear search