Task: Question Answering
Input (English): Problem: country x imposes a two - tiered tax on imported cars: the first tier imposes a tax of 25 % of the car ' s price up to a certain price level. if the car ' s price is higher than the first tier ' s level, the tax on the portion of the price that exceeds this value is 15 %. if ron imported a $ 30000 imported car and ended up paying $ 5500 in taxes, what is the first tier ' s price level ?
Options: a. $ 10000, b. $ 11000, c. $ 12000, d. $ 10500, e. $ 11500
Output (English): a