<human>: Objective: Around what age is an average toddler ready to start potty training?

Which of the following solutions is more sound in terms of naive physics reasoning?

OPTIONS:
- 22-24 months old is the age that most toddlers can start potty training.
- 22-24 weeks old is the age that most toddlers can start potty training.
<bot>: 22-24 months old is the age that most toddlers can start potty training.