Which One of the Following Is the Best Example of Two

Multiple Choice

Which one of the following is the best example of two mutually exclusive projects?

A) building a retail store that is attached to a wholesale outlet
B) producing both plastic forks and spoons on the same assembly line at the same time
C) using an empty warehouse to store both raw materials and finished goods
D) promoting two products during the same television commercial
E) waiting until a machine finishes molding Product A before being able to mold Product B