Michael Porter (1980) Suggests That the Threat of Competition Can

Michael Porter (1980) suggests that the threat of competition can come from any one of five different areas. These include:

A) disposable products, new entrants and the rivalry of competitors.
B) new entrants, existing competitors and information technology.
C) substitute products, new entrants and the rivalry of competitors.
D) new entrants, substitute products and information technology.
E) none of the above.