The correct answer is A. I and II only.
Cost-plus pricing is a pricing method in which a company sets its prices by adding a markup to its costs. This method is often used by companies that produce customized products or services, as it allows them to recover their costs and make a profit.
Public utilities are companies that provide essential services, such as electricity, water, and gas. These companies are often regulated by the government, which sets their prices. Cost-plus pricing is a common method used by public utilities to set their prices.
Refusal pricing is a pricing strategy in which a company sets its prices very high in order to discourage customers from buying its products or services. This strategy is often used by companies that have a monopoly on a particular market.
Monopoly pricing is a pricing strategy in which a company sets its prices very high because it is the only company that sells a particular product or service. This strategy is often used by companies that have a monopoly on a particular market.
In conclusion, cost-plus pricing is considered appropriate for product tailoring and public utility pricing. It is not considered appropriate for refusal pricing or monopoly pricing.