Vehicle X was acquired at a cost of $80000$. Its useful life was five years, and it was expected to be sold for $5000$ at the end of that period. Depreciation for vehicles is calculated by the straight-line method. After three years of use, Vehicle X is replaced by vehicle Y. The purchase cost of vehicle Y is partly paid using the part exchange value of $20000$ for vehicle X. Calculate the loss on disposal of vehicle X.
- A$12000$
- B$15000$
- C$24000$
- D$30000$