One of the most important lessons learned from Boeing's outsourcing of the design and build of the airplane sections for the 787 Dreamliner is that __________________________.

A) outsourcing is universally good.
B) outsourcing design and build is not ideal to use when the product requires complex integration of disparate subcomponents.
C) outsourcing should never be used with the "build-to-print" model calling for suppliers to receive confidential blueprints.
D) outsourcing is a proven model for always saving companies time and money.
E) outsourcing is never good.