Mercury is a company that makes unique lighting solutions based on customer specifications. Frank has used them twice and has really liked the results, so when he hears his friend Osvaldo is looking to upgrade the lights in his dining room and kitchen, Frank is quick to recommend Mercury and gives Osvaldo a coupon for 15% off design services. This is an example of:

Pass-along

Explanation:

A viral marketing or word of mouth advertising is a marketing strategy based on individuals to increase brand, product or service awareness. It is cheap and easy to implement.

Pass along marketing is a type of viral marketing based on the recommendation of a business by a customer to another customer on a specific brand especially if the brand has provided new features.

where is the graph?