Schumpeter $(1996)$ described five types of innovation, emphasizing $$newness$$:$$

Which of the following is not one of these five types

a$.$

establishing a management policy to improvement in innovation

b$.$

the introduction of a new or improved good or service.

c$.$

The introduction of a new process.

d$.$

The identification of new sources of supply of raw materials.

e$.$

The opening up of a new market.