The primary function of the "Business Operations" process blade in Disciplined Agile is to provide ongoing support and services to customers and ensure that products function smoothly post-deployment. This involves managing customer relationships, handling support requests, andmaintaining operational stability. Options such as "B. To monitor the competitive landscape" and "D. To ensure cash flow in the organization" do not align with the core function of Business Operations. "C. To monitor and guide teams to remove barriers" is more aligned with the roles of leadership and governance. Hence, "A. To provide services to customers and support your products" is the correct answer.