Lists Practice Test

A student grades list of integers starts as 90, 84, 76, 88, 95. A teacher tries to add 10 points to the second grade, like a bonus for extra credit. The code mistakenly uses grades2 = grades2 + 10 while intending the second element. The list uses zero-based indexing. Only one element should be updated. Based on the scenario above, identify the error in the list operation and suggest a correction.

A shopping cart list of strings starts as 'milk','bread','eggs','apples','rice'. The shopper removes the item 'eggs' after deciding not to buy it, like taking it out of a real basket. The code uses cart.remove('eggs') to delete that exact element. The list keeps the remaining items in the same order. No other items are added or changed. In the context of the problem, how does the list change after removing the element?