Research indicates that 25 percent of u. s. salespeople engaged in selling consider it unethical to explicitly ask customers about competitors' strategies such as pricing practices, product development efforts, and trade and promotion programs.
a. order-taking
b. business-to-business
c. business-to-consumer
d. missionary
e. partnership

(B) business-to-business

Explanation:

Business to business selling is the process in which a one business selling its products and the services to the another business instead selling the products to the customers.

It basically create some value for the business and it is one of thee most complex selling business as compare to the B2C (Business to consumer).

B2B (Business-to-business) is one of the best technique and practice where the company selling the products to another business company such as wholesaler and office supplier.

Therefore, Option (B) is correct.