Can Someone explain how this code works, thank you

The max method below is intended to return the largest value in the parameter coll. Which test case parameter would expose the logic error in this method? public static T max (Collection T> coll) Iterator itr = coll, iterator(); T max -itr.nextO while (itr.hasNextO) if (max.compareTo (itr.next O)0) max it. next ( ) ; = return max; .co11-[1, 3, 5, 7, 9] B. coli- [9, 7, 5, 3, 1] C. coll- [3, 7, 9, 1, 5] D, coll = [1, 9, 3, 7, 5]