The correct answer is in fact... Ratio.
I have always hated this terminology, but the word ratio is used for any numerical data measured with respect to some unit of measurements. In this case median house price might be \$200,000 which is to say the value takes a ratio of 200000:1 with the $1 unit of measurement. An important part of ratio measurement, is a unit-less non-arbitrary 0. In this case 0 means specifically no money, no Dollars, Yen, or Euros. 0 is 0.
As per the other answer, in the context of statistical data types nominal is more or less synonymous with categorical, nominal = name. Ordinal is just an ordered nominal variable. And interval is an ordinal variable with constant differences.