Read the following context and choose the best option to answer the question.
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: 
- They wanted to see who would need the toilet first .
 - They were trying to make themselves throw up .
 - None of the above choices .
 - They were too full and could nt eat any more food .


None of the above choices .