A broad differentiation strategy

a. is mostly based on clever advertising capabilities.
b. is only sustainable with higher-end, more expensive products.
c. appeals to customers who don't tend to be particularly loyal to a brand and who will willingly switch to a different brand if it costs less.
d. is based on offering a unique product or service that a wide range of buyers find appealing and worth paying for.

Ans: d. is based on offering a unique product or service that a wide range of buyers find appealing and worth paying for.