Final answer:
All the listed companies are typically operating in b2b (business-to-business) markets except for a travel agency.
Step-by-step explanation:
In this multiple-choice question, all the listed companies are typically operating in b2b (business-to-business) markets except for a travel agency.
The other options - an oil refinery, a marketing consulting firm, a wholesaler, and a point of sales service provider - are all examples of businesses that primarily engage in transactions with other businesses rather than with individual consumers.
The complete question is:all the following companies are always operating in b2b markets, except: multiple choice an oil refinery. a marketing consulting firm. a travel agency. a wholesaler. a point of sales service provider.