A delivery service is buying 600 tires for its fleet of vehicles. One supplier offers to supply the tires for $85 per tire, payable in one year. Another supplier will supply the tires for $20,000 down today, then $45 per tire, payable in one year. What is the difference in PV between the first and the second offer, assuming interest rates are 8.4%? O A. $3,210 OB. $2,140 OC - $3,210 OD. $856