Radical innovation is based on existent business model and exploring novel technology, and development of new and different products such as biotechnology for pharmaceutical companies, jet engines for airplane manufacturers, and fiber-optic cable for telecommunication companies. Disruptive innovation requires a new business model but not necessarily a technological breakthrough. Architectural innovation combines technological and business model disruptions. Process innovation refers to a company’s effort to refine and improve its current processes. Routine (incremental) innovation is based on having the existing business model, exploiting the existing knowledge base and small improvements of existing products. The correct answer is Choice A.