Data Scientist - Focuses on developing and optimizing ML models without direct consideration of business application.

Software Developer - Specializes in building and maintaining software applications, with limited focus on ML or business problem-solving.

Ethical AI Researcher - Concentrates on ensuring AI and ML technologies are developed and used ethically, with minimal focus on practical business applications.

Professional Machine Learning Engineer - Specializes in translating business challenges into ML use cases, ensuring models are scalable, cost-effective, and compliant with regulations.

Both A and D - Data Scientists and Professional Machine Learning Engineers collaborate closely to address business challenges with ML.