Please choose the correct solution to the question: How to Assemble Crispy Ground Beef Tacos

Solution1: To assemble crispy ground beef tacos, first add a cooked ground beef and onion mixture to the fried taco shells, then top with cheese, tomatoes, and lettuce. Optionally, you can add a little heavy cream.

Solution2: To assemble crispy ground beef tacos, first add a cooked ground beef and onion mixture to the fried taco shells, then top with cheese, tomatoes, and lettuce. Optionally, you can add a little sour cream.

Answer format: solution1/solution2