Answer:
The correct answer is D. perfectly elastic labor supply curve and a downsloping labor demand curve.
Explanation:
The basis of the model is the assumption that no player in the market is large or strong enough to be able to control the industry. There are many buyers and sellers, and each one is small. Companies can sell any amount of production at market prices. Companies in this form of market face a horizontal demand curve, and all companies produce a homogeneous product.
A large number of small sellers and buyers exist in this type of market. No entity is so powerful that it can change the face or direction of the industry. No company can produce any control over the price or quantity of the product. Although each company increase or decrease prices and production, the industry as a whole remains unchanged.