请教NN PREP里一道数学题

1 A certain builder is selling five homes for the following prices:  $157,000, $168,000, $195,000, $235,000, and $256,000.  If the price of the most expensive home is increased $10,000, which of the following statements best describes the change in the mean and the median of the home prices?C

(A) The mean and the median will remain unchanged.

(B) The mean will remain unchanged but the median will increase.

(C) The mean will increase but the median will remain unchanged.

(D) The mean and the median will increase by the same amount.

(E) The mean and the median will increase by different amounts.

啊，还没考已经晕了，谢谢楼上提醒