If we choose more work we sacrifice leisure

Which of the following would cause the quantity of wheat bread demanded to increase, but not the demand for wheat?

a. a reduction in the price of rye, used to produce rye bread b. a new scientific study demonstrating that wheat bread reduces the risk of colon cancer c. a decrease in the price of rye bread d. an increase in the number of farmers growing wheat

Marquis borrowed $1,000 from Ayana for a year and agreed to repay her $1,050 at the end of the year. If the inflation rate was 3 percent, what is the real rate of interest Ayana received?

a. 10 percent b. 5 percent c. 3 percent d. 2 percent e. -2 percent