which of these events would most likely lead to a rise in interest rates for home mortgages?

a. the prices of homes for sale in a certain city rise by a great deal
b. many new lenders begin offering home mortgages
c. how sales increase greatly for several months in a row
d. the average time needed to sell a house doubles

a. the prices of homes for sale in a certain city rise by a great deal

When the prices of homes for sale in a certain city rise by a great deal, demand for mortgages to purchase those homes will likely increase. This increased demand for home mortgages may lead to higher interest rates as lenders seek to make a profit on the loans they issue.