Lean production strategy aims to minimize waste and maximize efficiency. The most appropriate activity in this context is implementing manufacturing cells:

Manufacturing Cells: This involves organizing production processes into small, flexible cells that can produce a variety of products efficiently. It reduces waste, improves workflow, and enhances flexibility.

Push vs. Pull: Lean strategies typically involve a pull strategy rather than a push strategy.

Inventory Levels: Lean production focuses on reducing excess inventory, contrary to increasing service through inventory.

Batch Type Operations: These can lead to higher inventory levels and are generally not aligned with lean principles.