Types of service and Job roles

[blank_start]vending[blank_end] machines sell a wide range of products such as [blank_start]sweets[blank_end], drinks, packaged [blank_start]snacks[blank_end] and even whole [blank_start]plated meals[blank_end]

Which type of service does this description and photograph apply to? Customers collect their own main course items from the carving table where joints of meat displayed and kept hot by special lamps and hot plates. Often, a chef from the kitchen carves the joints, but sometimes a member of the serving staff does the carving. Customers help themselves to vegetables, gravy, sauces and other accompaniments like Yorkshire puddings.

Table service is cheaper for a restaurant to run than a counter service.

Which of these statements describes a sous chef