What phrase best describes the bundled pricing model?

The bundled pricing model is best characterized as a combination of transaction processing fees. This pricing strategy consolidates multiple fees into a single, comprehensive rate, making it easier for merchants to understand their overall cost structure for payment processing. By bundling various fees, including those for transaction processing, service charges, and other related costs, this model provides a clearer view of overall expenses, which can be particularly beneficial for businesses in managing their payment costs.

In contrast, the other options describe different pricing strategies. A flat fee charged for service implies a single, unchanging price without consideration for transaction volume, which does not encompass the variety of fees found in the bundled model. A base rate without additional costs suggests a straightforward pricing approach that does not factor in the complexities of varied transaction types and volumes associated with bundled pricing. Exclusive fees applicable to high-volume transactions indicate a pricing strategy that is tailored to businesses with significant transaction activity, which is not representative of a bundled pricing structure that is typically more inclusive of diverse costs.