A tire dealership has sold an average of 1,000 radial tires each year. In the past two years, tire sales were as follows:

Season	Year 1 Demand	Year 2 Demand
Fall	200	250
Winter	350	300
Spring	150	165
Summer	300	285

Calculate the seasonal index for each quarter.

Which seasonal index is correct?

Fall = 0.85, Winter = 1.25, Spring = 0.58, Summer = 1.12

Fall = 0.99, Winter = 1.19, Spring = 0.59, Summer = 1.17

Fall = 0.95, Winter = 1.35, Spring = 0.68, Summer = 1.22

Fall = 0.80, Winter = 1.20, Spring = 0.53, Summer = 1.07