Answer:
Option (B) is correct.
Step-by-step explanation:
A sunk cost is a cost that was already incurred in the past, alternatively we can say that it is a past cost. These are the costs which cannot be recovered in the future.
The examples of the sunk cost is depreciation expenses, salary expenses, maintenance expense etc.
Therefore, it is not considered in the decision making process which will be held in the future
Since, in the given question, the amount of $12,000 was invested eight years ago which is not recovered now. So, we considered this cost as a sunk cost.