Answer:
The revision that will correct the punctuation error in the sentence is:
2. replacing the comma after "aside" with a semicolon
Explanation:
The sentence can be basically divided into <u>two main ideas</u>. One concerns the shopping list made by Angela's brother. The other concerns Angela picking up the real list to go shopping. <u>The first idea is developed by listing the silly items Angela's brother wrote down and saying that Angela put that list aside. To start the second idea, a comma does not suffice. Therefore, we need to place a semicolon after "aside", since that is where the first idea ends. The semicolon will come before "then", which is the mark of what Angela did next, the second idea. </u>The correct sentence is:
"Chuckling, Angela looked over her little brother's shopping list of bubble gum, race cars, and a puppy, and laid it aside; then, ignoring Harry's protests, she picked up the real list and headed for the door."