Which XXX condition generates the following output? Not Found

#include int BinarySearch(int numberList[], int element, int lowVal, int highVal) { int midVal; if (XXX) { midVal = (highVal + lowVal) / 2; if (numberList[midVal] == element) { return midVal; } else if (numberList[midVal] > element) { return BinarySearch(numberList, element, lowVal, midVal - 1); } else { return BinarySearch(numberList, element, midVal + 1, highVal); } } else { return -1; } } int main(void) { int size = 10; int numberList[size]; int element = 20; int matchPos; for (int i = 0; i < size; ++i) { numberList[i] = i; } matchPos = BinarySearch(numberList, element, 0, size - 1); if (matchPos >= 0) { printf("Found at position %d.", matchPos); } else { printf("Not found."); } return 0; }

options:

lowVal >= highVal

lowVal == highVal

lowVal <= highVal

lowVal + highVal == 0