Answer:
Correct answer is North Sea
Explanation:
The correct answer is North Sea because it has the largest deposits of oil in the whole Europe. Most of them are being exploited by Norway. That is why economy of this country has been largely dependent on the production of oil.
The other regions that have been mentioned in here are not as rich with oil as the North Sea is.
Pretty sure it's B I don't remember the proper rules of commas and the word "and" but it's either A or B
No there shouldn't be a comma before the"or"
