After reviewing the graph you posted with the question and also reviewing the 2011 reference tables, the estimated number of daylight hours that can occur on January 1 at 40° N latitude is 8.5 hours - 9.5 hours. Either of these will be correct to use.
The answer to the question above is "B. less available tax revenue" based on the GDP calculation formula. The GDP calculation formula is stated as GDP = C + I + G + (Ex - Im) where C is consumers spending, i is investments, G is government spending, and (Ex - Im) is the difference between export and import. A low GDP means a low spending has occurred in the country which results in a decrease in tax revenue.
It is true that the geography of the north european lowland is that it does not include southeastern england. So the answer is letter C.
The outer plantes are Jupiter,Saturn,Uranus, or Neptune