You want to purchase a brand new Electric vehicle that costs $ 50,000. Dealer A offers you the car for a cash purchase immediately if you pay only $ 45,000. Dealer B offers you a no cost EMI of $ 1000 for 50 months.

a. Suppose you can purchase it by withdrawing from an investment you already invested in that yields 5% yearly, what option would you choose?

b. Suppose you can purchase it using your credit card, and unpaid credit card balances are charged 17% interest per year, what option would you choose?