问题
单项选择题
Which one of the following is most likely to contribute to the presence of monopoly in an industry（）
A. Legal barriers to entry into the industry.
B. Diseconomies of scale.
C. An elastic market demand for the product produced by the industry.
答案
参考答案：A
解析：
An example of an industry with legal barriers is utility finns, which are granted exclusive rights to supply electricity in certain areas.