Which of the following dietary substances is most likely to cause dental erosion?

Dental erosion is caused by acids that demineralize tooth enamel. Fruit juices are highly acidic (pH 2.5–4.0) and are a well-established dietary cause of dental erosion. Milk is neutral to slightly alkaline and is protective against erosion due to its calcium content. Yogurt contains lactic acid but is less erosive than fruit juices in practice. Water is neutral and has no erosive potential. Sodas and citrus juices are the most common dietary sources of dental erosion.