6. Which one below is a tactic for virtual waiting offered by Hospitality management scholars Duncan Dickson, Robert C. Ford, and Bruce Laval?

a. Manage the reality of the actual wait by looking like you are very busy.

b. Manage the perception of the wait by telling jokes to the customer.

c. Make the wait invisible through developing virtual queries, which allow customers to participate in other activities while they wait for an appointed time at their desired activity.

d. Make sure to tell the customer that sometimes things take a bit longer than expected and they need to be patient.