Buying your own home is often mentioned as "the best investment you can make." In 1930, the average home sale price was $3,845. By 1990, that figure had risen to $123,000. What was the average annual rate of change in the price of houses over this time period? Select one: a. 5.95% per year b. 3.42% per year c. 10.12% per year d. 12.36% per year.