Final answer:
Positioning statements should focus on the single, most important value claim and highlight the brand's unique benefits and differentiation from competitors.
Step-by-step explanation:
For claims about the product, positioning statements should focus on the single, most important value claim (option d).
Positioning statements should clearly communicate the unique value that the brand offers to customers, which sets it apart from competitors.
These statements should highlight the key benefits and points of differentiation of the brand, while also acknowledging potential points of similarity with competitor brands that may not be the main focus.