A defining characteristic of B2B commerce is that different business buyers can have contractual access to different products, pricing, and purchasing conditions. Salesforce B2B Commerce implements this through Buyer Groups, Entitlement Policies, and Price Books. An Entitlement Policy acts as a gatekeeper that determines which products and prices a particular buyer segment can access. This supports negotiated contracts and account-specific purchasing relationships that are common in business-to-business selling. B2B storefronts can still provide high-quality user experiences, accept credit cards when configured, and calculate applicable taxes, so options B, C, and D are not inherent differences between B2B and B2C commerce. Product entitlement differentiation is therefore the correct distinction.

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