Parking at a bus stop

1. Is permitted on Sabbath and holidays for commercial vehicles only, in accordance with the instructions on the sign that is posted in the bus station.
2. Is permitted on Sabbath and holidays for all types of vehicles.
3. Correct answer: Is permitted on Sabbath and holidays for private vehicles only, in accordance with the instructions on the sign that is posted in the bus station.
4. Is permitted on Sabbath and holidays for motorcycles only, in accordance with the instructions on the sign that is posted in the bus station.

WhyOnly private cars may park at a bus stop, on Saturdays and holidays, and only if the sign at the stop allows it. Other vehicles may not.