What distinguishes the Lean Startup approach from Design Thinking in the context of product development?

The Lean Startup and Design Thinking both start with finalizing irrevocable decisions.

The Lean Startup and Design Thinking are interchangeable terms for the same methodology.

The Lean Startup starts with a specific product idea and aims to find customers, while Design Thinking begins with understanding customer needs and then developing a product.

Design Thinking focuses on building a complete finished product, whereas the Lean Startup prioritizes rapid testing of prototypes.

Both approaches are primarily concerned with technical feasibility.