Apparently the answer is B however after looking at the question i placed D during the test. If market share decreases and car sales do not decrease to 6million, it is obvious that the total car market increased. Whereas, if yourmarket share increases to 12% and your sales goes up in an equal ratio, then the market hasnt increased at all. Sorry for the ineligible writing, GUYS DID YOU PUT 19 D or 19 B??