Which method is used for selling tangible personal property?

The method involving a contract or gift for intentional ownership transfer is the most appropriate choice for selling tangible personal property. When selling such items, the transaction is legally formalized through a contract, which outlines the terms of the sale, including the parties involved, the item being sold, and the price. This contract serves as a binding agreement that ensures both the seller and buyer understand and agree to the terms of the transaction.

A gift, while not a traditional sale, can also indicate an intentional transfer of ownership where no monetary transaction occurs, but the intention to transfer the item is still clear. This method emphasizes the importance of clear intent in the transfer of ownership, which is crucial in property transactions.

Other options, while they mention relevant concepts in transactions, do not accurately encompass or specifically address the formal process used for selling tangible goods. For instance, donation or agreement lacks the specificity of a binding contract. A receipt or memorandum pertains more to documentation post-sale rather than the method of sale itself. Meanwhile, an exchange or barter system does not align with the standard definition of selling, as it involves trading goods or services rather than a sale transaction.