Answer:
The correct answer is communications
Step-by-step explanation:
A commercial operation is a matter of two subjects: seller and buyer. If we have a person who ignores the customer's opinion then we have someone who does not know how to sell, it's that simple. Can you sell? Yes, all people can sell. But a good seller can do it well, facilitating the after-sales processes, increasing the future trust of the client, attracting new ones by recommendations, creating loyalty, making higher volume sales, selling complementary products ... that is, a good seller gives us a added value that cannot be provided by anyone.