please answer with steps

3. You bought a laptop at the price of $13000 on 01/20/2018, planning to sell it for $8000 after one year. However, on 01/19/2019 you spent $5000 to repair it and another $1500 is needed for full repair on 01/20/2019 before the transaction. Or you can just spend $500 and sell it for $4000. Which of the following will you do on 01/20/2019? A. Do nothing and discard the laptop; B. Spend another $1500 and sell it for $8000; C. Spend another $500 and sell it for $4000; D. The three options are the same. 4. What is the sunk cost in Q3 by 01/19/2019? A. $18000; B. $13000; C. $5000; D. None of the Above