Please answer part b). Thank you

Suppose there is a special promotion that allows you to get $500 back (and still finance the rest at 6.75% APR) or get a 2.9% APR for four years. Which option will you choose? 1b. Suppose there is a special promotion that allows you to get $500 back (and still finance the rest at 6.75% APR) or get a 2.9% APR for four years. Which option will you choose? 1b