Which One of the Following Statements Is TRUE

Which one of the following statements is TRUE?

A) The process of concurrent engineering requires design engineers, manufacturing specialists, and marketers to work jointly in designing a product and selecting a production process.
B) Increased market segmentation and technological advances mandate long development cycles.
C) Firms like Ford and Honda found that the concept of concurrent engineering is not cost effective.
D) Recent trends are for manufacturing firms not to involve operations until the final design stage has been reached.