Answer:
C. to protect freedom of choice
Step-by-step explanation:
Coercion is the use of power and influence to manipulate someone into what we want him to do, in a free-market society owners and workers should have the possibility to buy, sell, or trade with whomever they want and benefit them the most, if someone makes them trade with them or manipulates them into doing somthing they are not allowing them to have freedom of choice, for example when a large corporation threatens a smaller into selling to them at a lower cost or they´ll stop buying from them, this creates an unfair disadvantage to the smaller corporation.