I went with D as well - this one is a toughie
OA is B
Explained by -
This choice provides a motive for companies to invest in global warming research. If the research is specifically geared at developing technologies used to combat global warming, this research represents a long-term strategy for finding new ways for the companies to profit. This is in contrast with the research that the oil companies oppose - research focused on the severity and immediacy of the issue, a focus which might lead to government action that could have a negative impact on the profitability of the oil companies in the short term.
Really? I went with C on this one. But I guess there's no use in explaining my faulty logic
I'm surprised though about this reasoning, for me there are a lot of assumptions implied in that answered.
Hope that GMAT questions are a bit less ambiguous than this one.
Good question though,