Answer:
c. Buyers have strong bargaining power and entry barriers are low.
Explanation:
In markets where buyers have stron bargaining power because options are abundant, and entry barriers are low (the reason why options are abundant), focused strategies that attempt at attracting customers with lower prices or product differentiation can be very important in maintaining a firm's market share, or improving it.
A lower cost can attract most types of customers because almost everyone is interested in saving as much as possible when they buy goods and services. However, product differentiation is another good strategy because if suppliers are many, people often need something special about the good to finally take the decision to purchase it.
