External and internal factors influence the individual situation of companies. Which statement is correct in this context? a. Porter's industry model describes the industry of companies based on five different forces and is used to determine the

External and internal factors influence the individual situation of companies. Which statement is correct in this context?
a. Porter's industry model describes the industry of companies based on five different forces and is used to determine the attractiveness of an industry.
b. The strengths and weaknesses of companies can be derived from the macro environment.
c. If companies are supported by subsidies, this is part of the economic environment of companies.
d. In SWOT analysis, the strengths and weaknesses of a company are worked out based on the macro and industry environment.
e. The analysis of the technological environment shows whether there are substitutes for products of a company in a particular industry.