15 points!!!!!!!!!!!!!!!
Read the passage.
The burning of fossil fuels is having a negative impact on the planet via global warming. _____, in 2006, Western Europe experienced some of the hottest weather in history.

Which transitional word best completes the passage?



A. In fact

B. Because

C. Instead

D. Therefore

Please Help!! Im not so sure whether the answer is A or D. Please help!!