​To decrease buyer power,the firm can

A) ​Differentiate its product
B) Decrease dependency on a single buyer
C) Sell its products in locations with multiple buyers
D) ​All of the above

By differentiating its product, the firm can make it more unique and reduce the bargaining power of buyers who may have limited alternatives. By decreasing dependency on a single buyer, the firm can spread the risk across multiple buyers, making it harder for any one buyer to exercise significant influence over the firm's pricing or product offerings. Selling products in locations with multiple buyers can also help reduce buyer power, as it increases competition among buyers and reduces the ability of any one buyer to exert significant influence over the supplier. Taken together, these strategies can help reduce buyer power and improve the firm's bargaining position.