[单项选择] Before discussing the effects of inflation and deflation on the distribution of income, it will be useful to define these terms. By inflation we mean a time of generally rising prices for goods and factors of production, such as payments for work and money paid for the use of buildings or land. By deflation we mean a time when most prices and costs are falling. Neither in inflation nor in deflation do prices all move in the same direction or in exactly the same proportion. As a result of changes in relative prices and in total spending, the two processes of inflation and deflation cause clearly defined and typical changes in the distribution of income among economic classes. Inflation which is not expected tends to favor debtors(f|(债务人) and profit receivers at the expense of creditors(债权人) and receivers of income which does not change. Suppose, for example, that you lend $1,000 to someone today and are paid back one year from now. If in the time between when you lend the money
A. sell out all his/her real estate
B. lend money to other people
C. invest in common stocks
D. sell out goods he/she owns