A Bread-Making Factory Has the Production Process Shown in the Figure

Multiple Choice

A bread-making factory has the production process shown in the figure below. There are three operations (mixing, baking and packaging) in sequence, but it does not matter which oven is used. The factory is considering purchasing faster equipment to replace one of the existing operations. Which operation should be first considered?

A) Mix
B) Bake, one oven only
C) Bake, both ovens
D) Pack
E) Both Bake and Pack should be replaced.