$\backslash$table$[[3.,0],[4.,0],[5.,0],[6.,0],[7.,0]]$

Faisal owns a convenience store in the countryside. He values his customers and addresses customer complaints, if any, promptly. Consequently, he enjoys a highquality relationship with many of his customers. Which of the following scenarios exemplifies a high$-$quality relationship between Faisal and his customers?

a$.$ His customers are loyal to him and buy groceries and other household requirements only from his store.

b$.$ His customers occasionally frequent other stores in the neighborhood but return to his store again and again.

c$.$ His customers engage in long friendly chats with him every time they visit the store even if they do not purchase anything.

d$.$ His customers always take advantage of any special offers at his store even if they do not regularly buy products from him.