Why does Bobby have a stomachache?

Bobby has a stomachache because he ate too much ice cream. Consuming excessive amounts of sugary or dairy products can lead to discomfort and digestive issues, such as bloating or cramps, as the stomach may struggle to process the overload of sugar and lactose. This situation is quite common, particularly in children who might indulge in treats without considering moderation.

In contrast, while drinking too little water, skipping lunch, and exercising too much can also potentially lead to stomach discomfort, these scenarios usually do not cause as immediate or pronounced an effect on the stomach as overeating rich foods like ice cream does. Therefore, the consumption of too much ice cream stands out as the most likely cause of Bobby’s stomachache.