Final answer:
The answer is a) Customers can make up to 3 modifications. If more modifications are requested, it is suggested that the customer chooses another salad or menu item.
Step-by-step explanation:
The answer to the question is a) Customers can make up to 3 modifications. If more modifications are requested, it is suggested that the customer chooses another salad or menu item. This helps to maintain the efficiency and consistency of serving salads while also ensuring customer satisfaction. By limiting the number of modifications, the restaurant can effectively manage its operations and offer a diverse range of salad options to cater to different preferences.