For question first identify the most suitable concept among the following. Do not use any other concept. C1: Strategy is fit between trade-offs. C2: Industry attractiveness may be understood from the five forces: bargaining power of customers, bargaining power of suppliers, industry rivalry, threat of substitutes, and threat of new entrants. C3: A resource provides a competitive advantage to a firm controlling it if the resources are valuable, rare, inimitable, and nonsubstitutable. C4: Core competence. C5: Game theory. C6: Strategy and structure must fit for superior firm performance. C7: Platform business have unique characteristics that set them apart from pipeline businesses. Que:- A company making defence aircrafts has expanded into making armoured land vehicles for defence personnel. Which concept is most likely to indicate that this is not a good move at all