Rigby defined omni-channel retailing as: “an integrated sales experience that melds the advantages of physical stores with the information-rich experience of online shopping”, so the correct answer is A. The information about the orther answer choices are as follows:

The term bricks and mortar refers to the physical retail stores. Brick and click retailers are the retailers that operate both online store (the clicks) and offline the physical retail stores.

Distribution channels primarily focus on the movement of goods and services from the business to the consumers.

A marketing network includes the company and its supporting stakeholders (i.e. customers, employees, suppliers, distributors, university scientists, and others) with whom it has built mutually profitable business relationships.