964 Road signs Choose 1 answer

Which statement about the building number plate below is correct?

1. ①Pyeongchon-gil is the road name, and 30 is the building number.
2. ②Pyeongchon-gil is the main entrance, and 30 is the base number.
3. ③Pyeongchon-gil is the road's starting point, and 30 is the building address.
4. ④Pyeongchon-gil is the road classification criterion, and 30 is the detailed address.