Read the short case on Prt A Manger and, (a) identify the processes in a typical Prt

Read the short case on Prêt A Manger and, 

(a) identify the processes in a typical Prêt A Manger shop together with their inputs and outputs. 

(b) Prêt A Manger also supplies business lunches (of sandwiches and other takeaway food). What are the implications for how it manages its processes within the shop? 

(c) What would be the advantages and disadvantages if Prêt A Manger introduced 'central kitchens' that made the sandwiches for a number of shops in an area? (As far as we know, it has no plans to do so.)