Which of the following services will be provided by a full-service broker but not by a discount broker?I. Research of potential investment opportunitiesII. Purchase and sale of stock at your requestIII. Recommendation of investments

A full-service broker typically provides investment research and recommendations, so services I and III distinguish it from a discount broker. Both types can purchase and sell stock when you request it, so service II does not distinguish them. The correct choice is I and III.

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