Under standard platform rules, what is the maximum allowable passenger capacity for an individual ride-hailing order booked for a standard 5-seat sedan?

1. Up to 6 adults if they sit closely together
2. Exactly 4 passengers (excluding the driver), and infants/children count as individual passengers toward the vehicle's rated seating capacity
3. Up to 5 passengers plus 2 infants sitting on laps
4. Unlimited passengers as long as all doors can close