Of the given firms, the best illustration of a natural monopoly is: (i) Dell, the largest seller of personal computers. (ii) Toyota, i.e., the huge car company in the world. (iii) OPEC, i.e., the international oil cartel. (iv) Google that dominates the web searching market. (v) a local electric or natural gas utility company.
Please choose the right answer from above...I want your suggestion for the same.