单选题 A company recently opened a limestone quarry at a location outside its traditional service area. Because limestone is a major ingredient in concrete, if the quarry is successful the company plans to build a ready-mix concrete plant is best described as:

A、 an externality.
B、 project sequencing.
C、 an example of investment synergy.

【正确答案】 B

【答案解析】[解析] 项目顺序是指厂商根据当前项目的盈利情况来决定是否投资于未来的某项目。显然，本题的情况最符合项目顺序的定义。