An Indiana CLP holder has a P endorsement and is accompanied by a properly licensed CDL holder. The carrier asks them to drive a bus route with paying riders for practice. What should happen?

1. They must not carry the paying riders because the CLP has a no-passengers-in-CMV-bus restriction except specified authorized people
2. They may carry the riders because a CDL holder is present
3. They may carry the riders if the trip remains inside Indiana
4. They may carry the riders if the bus has fewer than 30 seats