Business requirements in VCF articulate organizational objectives that the solution must enable, often focusing on efficiency, cost, or service improvements rather than specific technical implementations. Option B, 'Decrease processing time for service requests by 30%,' is a business requirement as it targets an operational efficiency goal that benefits the customer's service delivery, measurable from a business perspective rather than dictating how the system achieves it. Options A, C, and D---specifying OS compatibility, user capacity, and encryption standards---are technical requirements, as they detail system capabilities or security mechanisms that architects must implement within VCF components like vSphere or NSX. The distinction hinges on intent: B focuses on outcome (speed), while others define system properties.