Answer: sizing option.

The correct answer is **A** because sizing options include the ability to abandon or expand capacity. If a company abandons an investment due to disappointing financial results, it exercises an abandonment option. This is beneficial if the cash flow from abandoning exceeds the present value of continuing the investment. Conversely, if the company can expand when results are strong, it exercises a growth option. **B** is incorrect because timing options involve delaying investments to gather better information, not abandoning existing ones. **C** is incorrect because flexibility options pertain to operational changes like overtime or shifts, not abandonment or expansion decisions.

Author: LeetQuiz Editorial Team