Under Regulation (EU) No 181/2011, when a regular long-distance bus service (≥ 250 km) is cancelled or delayed in departure from a terminal by more than 120 minutes, what immediate choice must the carrier offer to the passenger?

1. Immediate re-routing to the final destination at no additional cost under comparable conditions, OR reimbursement of the full ticket price (and, where relevant, a free return service to the first departure point)
2. A 10% discount coupon on their next vacation booking with no refund option
3. Mandatory rebooking on a flight at the passenger's own expense
4. Carriage in the luggage hold of the next available coach