A used defender can be kept for two more years and then sold for an estimated $3,000 or it can be sold now for $12,000. The average annual maintenance cost over the past 7 years has been $500 per year. However, if the car is kept for two more years, that cost is expected to be $1,800 the first year and $2,000 the second year. As an alternative, a new challenger can be purchased for $22,000 and be used for four(4) years, after which it can be sold for $8,000. The new car will be under warranty for the first 4 years and no extra maintenance cost will be incurred during those years. If the MARR is 15 percent per year what is the better option? Keep the defender. The EUAC of the defender = 4093.02. The EUAC of the challenger = 4903.71. Purchase the challenger. EUAC of the defender = 7879.07. EUAC for the challenger = 6103.71. Keep the defender. The EUAC of the defender = - 6883.72. EUAC of the new challenger is 9307.96 Keep the defender. The EUAC of the defender = 497.67. EUAC of the new challenger is - 9307.96.