A key success metric for the acquire activity is the quality of the resources and services outsourced from suppliers, so option B is correct. Acquire is concerned with sourcing and allocating the inputs needed for value creation, including third-party services, components, technology, and other resources. Success therefore depends not only on speed and efficiency, but also on whether what is acquired is fit for purpose, reliable, and aligned with needs. Incident counts are more relevant to operate or support. SLA performance is more relevant to live service delivery. Negative impact of changes is more relevant to transition and change-related activities. ITIL views acquisition as a strategic and operational capability that supports the wider lifecycle. Poor-quality acquired resources create downstream problems, so quality is a strong and appropriate success measure.