Which tab will provide details on matched transactions for an order?

The correct answer is Matched Transactions tab because this specific tab is designed to display details regarding transactions that have been matched to a particular order. When reviewing orders, it is crucial to identify any corresponding transactions, as this helps in reconciling financial records and ensures that orders are correctly processed.

In contrast, other tabs such as Order Summary, Transaction History, and Order Details may present relevant information about the order, such as overall summaries, past transactions for reference, and specific details about the order itself. However, they do not focus specifically on matched transactions, thus making the Matched Transactions tab the most appropriate choice for finding that particular data.