Answer:
c. shopping when the showroom is empty of customers
Step-by-step explanation:
As we know that the bargaining is done by the customers so that they will pay the less amount for the goods purchased by them.
In the given situation, the bargaining position can be determined by shopping towards when the showroom is empty of customers so that they have an idea of how much they can bargain and they can bargain more and more
Hence, option c is correct