Arrangement in which a buyer purchases the right to sell the good or service of the seller is called

A sell and purchase agreement (SPA)

Explanation:

A sales and purchase agreement (SPA) is a binding and legal contract between two parties that obligates a transaction between the two parties: the buyer and the seller. SPA are typically used for real estate transactions, but they are found in all areas of business. The agreement finalizes the terms and conditions of the sale, and it is the culmination of negotiation between the buyer and the seller

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answer; a set of mutual funds with similar risk characteristics to your mutual fund;