Suppose that more shoe stores open up in town. this increases the number of sellers in the shoe market and competition. v a- increase b- decrease c- does not change

A - Increase

Explanation:

The numbers of seller in the shoe market will increase if more shoe stores are open, leading to increases competition because their would be wide range and variety of shoes for customers to buy which will definitely increase competition in the town.

The higher the sellers the higher the competition among them because every of the seller will always desire that the customers buy from them.