"Reginald greets and chats with his regular customers every morning when they come in for coffee. He offers them tastes of anything special he is cooking that day, and has a database with their birthdays, offering regulars a free meal on their birthday. Reginald knows his regular customers create repeat business and: "

spread positive word of mouth

Explanation:

Reginald knows his regular customers create repeat business and spread positive word of mouth. This means that the repeat customers leave happy and tell their friends about the great experience they had at Reginald's restaurant. This creates enthusiasm in the repeat customers' friends which in term causes them to go to Reginald's business and try the food. This creates more repeat customers and increased profitability for Reginald's business.

the correct option is c

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