Drag the following code pieces to the correct position. This code asks the user for several test scores and then prints the average. #ask for 3 scores # calculate average average_score= print("Average Test Score:", average_score) score = float(input("Enter score ")) test scores.append(score) len(test_scores) len(score) test scores.sum() test scores.add(score) test_scores sum(test_scores) [] score.append(test_scores)