Match this scenario with the best category of problem which leads to a reduction in market efficiency or possibly a total failure of the market and/or government intervention in the market. In the age of GPS lighthouses have become scenic curiosities and tourist destinations. But when lighthouses were built to aid ships in navigation and to avoid hazards they were ALWAYS built and operated by governments. Group of answer choices Market too small for revenue to cover costs Product has public good properties Product has externalities Consumers are uninformed of the product's true value Number of competitors creates market power for those in the market