Suppose that for lighting you operate ten 100 W light bulbs for five hours each day in each (30-day) month, and electricity costs $0.20/kW h. How many months (rounded to the nearest month) would it take for you to recover the cost of replacing the bulbs by an equal number of 6 W LED bulbs that cost $5 each? Group of answer choices a)10 months b)17 months c) 5 months d) 32 months e) 1 month