Which of the following is a force in the Porter's five forces model of industry attractiveness?

Bargaining power of suppliers is a force in the Porter's five forces model of industry attractiveness. The Bargaining Power of Suppliers, one of the forces in Porter's Five Forces Industry Analysis Framework, is the mirror image of the bargaining power of buyers and refers to the pressure that suppliers can put on companies by raising their prices, lowering their quality, or reducing the availability of their products.