Final answer:
The major risk to a business with a cost-leadership strategy in the Five Forces Model is competitors that implement technological innovations to offer more efficient and cost-effective production. Therefore correct option is C
Step-by-step explanation:
According to the Five Forces Model, which was developed by Michael Porter to analyze the competitive environment of a business, a major risk to a business pursuing a cost-leadership strategy comes from direct competitors that have leveraged technological innovations to develop a more efficient and cost-saving production method. This is because such innovations can undercut the cost-leader by offering products at even lower prices or by providing better value for money through improved quality or features. Firms pursuing cost-leadership must continuously seek ways to reduce their costs and improve their production efficiency to maintain their competitive edge.