Context: Afterward , we three went to a Mexican restaurant - the parental units overate while the infant unit drifted off to sleep in his Volkswagen - sized car seat .

Question: What may be the reason the parents overate ?
Options:
0. They wanted to see who would need the toilet first .
1. They were trying to make themselves throw up .
2. None of the above choices .
3. They were too full and could nt eat any more food .
Answer: 2