Which ingredient is present in the Iced Tootsie Pop Italian Soda but not in the Iced Pixie Stick Italian Soda?

The Iced Tootsie Pop Italian Soda features grape syrup as one of its distinct ingredients. This ingredient is essential to capturing the unique flavor profile reminiscent of Tootsie Pops, which are known for their chocolate and fruity flavors. In contrast, the Iced Pixie Stick Italian Soda does not include grape syrup, focusing instead on flavors that evoke the taste of the Pixie Stick candy, which often emphasizes fruitiness and tartness. Therefore, the presence of grape syrup in the Iced Tootsie Pop Italian Soda sets it apart from the Iced Pixie Stick Italian Soda, highlighting why this ingredient is the correct answer to the question.