7. an apartment has 12 units. the 12 units are 6 1-beds and 6 2-beds. one-beds rent for $250 per month and 2-beds rent for $350. actual rent for the year was 41,500. what was the percentage rent loss for the year?

a. 9.6%

b. 3.9%

c. I don't have enough information

d. 4.1%