Final answer:
Industry analysis is a true way to gain insight into competitors, as it helps understand market dynamics and firm strategies. Evidence of serious competition includes aggressive marketing and innovation, with the technology and airline industries being highly competitive.
Step-by-step explanation:
A useful way of gaining insight into competitors is through industry analysis. The statement is A. True. Industry analysis can reveal important information such as market saturation, customer preferences, technological innovations, regulatory environment, and industry trends. By understanding these aspects, companies can benchmark their performance and strategize accordingly to remain competitive. Evidence of serious competition between firms in an industry includes aggressive marketing, frequent product launches, price wars, and high levels of innovation. Two highly competitive industries include the technology sector, especially in areas like smartphones and personal computers, and the airline industry, where companies compete on routes, prices, and customer service.