Final answer:
The primary goal of Craig Wall's "You Blow Me Away" is selling a product.
Step-by-step explanation:
The primary goal of Craig Wall's "You Blow Me Away" is c. selling a product. This can be inferred from the description that Blow is a "trend spotter." In the context of the question, Blow is identifying and highlighting current trends that might interest people for the purpose of marketing and selling a product.