Question

(1 point) the practice of major mobile device companies of releasing new versions of their devices is an example of what kind of market penetration strategy?
product differentiation
market expansion
product improvements
distribution channels

Explanation:

Product improvements involve enhancing existing products. Mobile companies releasing new device versions enhance features, functionality, etc., which is product improvement. Product differentiation focuses on making a product distinct from competitors (not just version updates). Market expansion is about entering new markets. Distribution channels are about how products are delivered (not relevant here).

Answer:

product improvements