Final answer:
Diet soft drinks are just as erosive as their sugared counterparts due to similar acidity levels, both contributing to tooth enamel erosion.
Step-by-step explanation:
The correct answer to the given question is A. Diet soft drinks are just as erosive as their sugared counterparts. While diet soft drinks do not contain sugar, they often have similar levels of acidity to regular soft drinks. This acidity can erode tooth enamel over time, which is why both diet and regular soft drinks have been linked to enamel erosion. Regular dental cleanings, reducing sugar consumption, and the use of sugar alcohols like xylitol can help in preventing dental caries. Fluoride treatment also plays an essential role in strengthening tooth enamel and reducing the incidence of caries.