Robert has a truck he uses to make deliveries for his business. The truck has a FMV of $21,000 and an adjusted basis of $10,000. Robert still owes $9,000 on the truck. Peter has offered to trade his truck as an even trade and take over payments on Robert's truck. Peter's truck has a FMV of $12,000 and an adjusted basis of $10,000. They swap. What is Peter's substituted basis in the property received?

a. $19,000

b. $11,000

c. $0

d. $,9000

e. $10,000