Sombre is a toy manufacturer that orders the components required to make toys way before its customers make a purchase. they make modules with those components and later, upon receiving customer requests, make toys using those modules. they do this to make sure they are able to cater to the demands of the customers. it is evident that sombre has adopted a(n) ) assemble-to-stock operation
b) make-to-stock operation
c) make-to-order operation
d) assemble-to-order operation