Which of the following best describes buyer compensation?

Buyer compensation typically refers to the method by which a real estate agent is paid for their services in representing a buyer in a property transaction. The option indicating a percentage fee for services rendered aligns well with common practices in real estate transactions. Agents often charge a commission that is a percentage of the sale price of the property, which is calculated based on the total transaction value. This method not only incentivizes agents to secure the best deal for their clients but also directly correlates their compensation with the value they deliver in the transaction.

In real estate, while flat fees and other forms of payment can exist, the percentage-based compensation model is by far the most prevalent and widely recognized in the industry. It reflects a balance where the buyer's interests and the agent's financial incentives are aligned. Hence, this makes it the best description of buyer compensation in the context of real estate transactions.