In the Aircraft Manufacturing Industry, at Least for Large Commercial

Multiple Choice

In the aircraft manufacturing industry, at least for large commercial jets, Boeing and Airbus are the only competitors. There is not a significant threat of entry because

A) entering the aircraft manufacturing industry requires huge capital investments.
B) there is expected to be a huge return on investment within this industry.
C) there is no credible threat of retaliation from the incumbents.
D) entering the aircraft manufacturing industry means violating government policies.