Which of the following best represents the pricing behavior of firms in a monopolistically competitive industry?

• Teen Angle Hardware looks for a niche to sell its hardware products to teens but finds it difficult to earn anything more than normal profits due to other hardware stores also looking for niches.
• Looking Over Your Shoulder Handbag Co. chooses the price it charges by estimating what its rivals are most likely to do and then taking their responses into consideration.
• Unykdrugs Inc. knows it will not face competition due to patents it holds on its products, the company's pricing strategy is based on the market demand for the product.
• Stay*Put Clothespins takes the market price of clothespins as given and produces the amount of clothespins where marginal revenue equals marginal cost.