Kate is trying to find the optimal timing to buy a new car.She read that the price of the type of system you are interested in is likely to fall over the next three years, as follows: price today = $1000, price in 1 year = $980, price in 2 years = $960, price in 3 years = $940.Assuming that the present value of your expected benefit from the new car is $1100 whenever she buys it, and her personal discount rate is 18%, what is the optimal time for you to buy the new car?

aa) in 3 years

bb) in 2 years

c) It makes no difference, all are equally optimal times to buy

d) Today

e) In 1 year