The operations function of a business is responsible for ensuring that products or services meet quality standards. Operations management involves overseeing, designing, and controlling the process of production and redesigning business operations in the production of goods or services. Scheduling production runs (Option A) is indeed part of operations, but quality control (Option B) is a fundamental responsibility that directly falls under operations management. Determining what new products will be produced (Option C) and designing the product (Option D) are typically associated with the marketing and R&D or design departments, respectively.