Porter's Five Forces Is a Model Which Identifies Five Competitive

Porter's Five Forces is a model which identifies five competitive forces that influence planning strategies.In regards to this model,which one of the following statements is true?​

A) ​It separates the forces into internal and external categories.
B) ​The model was later updated to include the impact of the Internet on a firm's strategies.
C) ​It identifies the threat of regulatory controls as one of the five forces.
D) ​It only applies to firms that manufacture their own products.
E) ​It is an integral part of the SWOT Analysis.