188
What three changes allow the class to be used with generics and avoid an unchecked warning? (Choose three.)
1. Remove line 14.
2. Replace line 14 with "int i = iter.next();".
3. Replace line 13 with "for(int i : intList){".
4. Replace line 13 with "for(Iterator iter : intList){".
5. Replace the method declaration with "sum(List＜int＞ intList)".
6. Replace the method declaration with "sum(List＜Integer＞ intList)".
(A) 123
(B) 246
(C) 136
(D) 456
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