When a Firm Is Interested in Earning Word-Of-Mouth Publicity from Customers,which

When a firm is interested in earning word-of-mouth publicity from customers,which of the following approaches would help the firm?

A) The firm has to discourage referral programs, as they do not promote positive word-of-mouth always.
B) The firm has to ask for recommendations from satisfied customers.
C) The firm should show a high performance, though it can be inconsistent.
D) To maintain reliability, the firm should offer social media content that cannot be easily shared.
E) The firm should make the customers believe that all of its products are great for recommendation.