An arithmetic gradient has cash flow of $500 at the end of year 2, $600 at the end of year 3, and amounts increasing by $100 per year through year 10. At i =10% per year, the present worth of that cash flow in year 0 is closest to:

(a) $1942 (b) $2880 (c) $3217 (d) $4383 (e) >$4500