Are diet and regular sodas healthy?

Which option below is the most effective explanatory thesis for the prompt?

All sodas are fine in moderation but water is healthiest of all.

Studies show over-consumption of both sugar and artificial sweeteners can lead to weight gain and diabetes.

Both diet and regular sodas affect your metabolism but the long-term effects of artificial sweeteners are less well-known and therefore more concerning.

Diet sodas are only bad for your health if you use them to wash down cheeseburgers and fries.

Studies show over-consumption of both sugar and artificial sweeteners can lead to weight gain and diabetes.