The Method CheckArray Examines an Array Arr

Multiple Choice

The method checkArray examines an array arr:
Public static boolean checkArray(int[] arr)
{
If (arr[0] >= arr[arr.length -1])
{
Return true;
}
Return false;
}
What can you conclude about the running time of this section of code?

A) Its running time will be O(n) .
B) Its running time will be O(n²) .
C) Its running time will be O(log (n) ) .
D) Its running time will be O(1) .