remove all duplicates from this list: 

apples, grapes, bananas, oranges, kiwi, pears, plums, oranges, cherries, apples, tangerines, peaches
apples, grapes, bananas, oranges, kiwi, pears, plums, cherries, tangerines, peaches
Which items where duplicates?
The duplicates were oranges and apples.
Yes, the answer is correct!