Answer:
Stavanger is warmer than the rest of Norway because the Gulf Stream carries warm water to the Stavanger area.
Step-by-step explanation:
A is not correct because there are cities in Norway that are located further south than Stavanger.
B is correct because the location of Stavanger is right where the Gulf Stream influences the Norwegian coastline the most, bringing in warm water, thus warmer weather conditions as well.
C is not correct because if that was the case Stavanger would have been significantly colder.
D is not correct because the lack of sea ice is due to the Gulf Stream.